Wildguzzi.com

General Category => General Discussion => Topic started by: lad on January 16, 2021, 09:39:04 AM

Title: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 09:39:04 AM
I couldn't find anything by searching the forum, so I might just lump everything in here and see what happens.

I noticed a few blank spots (?) when accelerating, at all gears, like no power for a second or two and then it's back.

I pulled the plugs (they were the wrong plugs, rated as cooler) which were black, dry, sooty, and smelling like petrol. Have the proper ones in now and gapped so that's one issue down.

(https://i.ibb.co/FDxDRJt/plugs.jpg) (https://ibb.co/FDxDRJt)


Checked the air filter and it appears to be brand new, although the airbox itself doesn't seem to mate too well, is this common ?

(https://i.ibb.co/87WmFtK/Air-box.jpg) (https://ibb.co/87WmFtK)


I wanted to check the fuel filter too, but I don't see it in the manual, so maybe there isn't one? But then what's this canister type thing? Is it just the little strainers on the petcock to check? :

(https://i.ibb.co/dWqFKSq/Fuel-Pump.jpg) (https://ibb.co/dWqFKSq)


And what's this little thing that looks like a thermostat:

(https://i.ibb.co/2S5ytK8/Thing.jpg) (https://ibb.co/2S5ytK8)


Lastly, what's running through the frame? I see some connections along it, one of which is this chunky pipe that seems split and has me worried, any ideas?

(https://i.ibb.co/58kJ30y/Split-frame-pipe.jpg) (https://ibb.co/58kJ30y)


That's it really, any help is appreciated. This is my first guzzi that I've owned, and my first post, the first of many (bikes and posts).

Cheers!
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi_Roy on January 16, 2021, 09:54:45 AM
First of all welcome to the forum, you are in the right place. What year is your 1100i?
This is a manual for the early fuel injection systems.
https://www.dpguzzi.com/efiman.pdf
Item (3) in the second picture is the fuel pressure regulator, it shows yellow hoses going to the manifold but that is an early idea, usually the regulator is referenced to atmosphere (no hose) and the fuel pressure is kept constant.
Is the ignition cutting out with wide throttle openings? That can be caused by bad high tension leads, a quick check is to measure the resistance from plug cap to chassis, should be the same on both sides and around 6-8K Ohms, sometimes they are fitted with carbon core wire, copper core is the way to go.
Title: Re: Few questions about a cali 1100i?
Post by: guzzisteve on January 16, 2021, 09:59:29 AM
Here's a manual that covers what you ask------

https://guzzitek.org/atelier/gb/1100/California1100_Atelier_Compil.pdf

The cannisters are EVAP for gas fumes.
Gas filter is in line with the pressure regulator which is the 4th photo down.
Fuel pump is on frame under L/H cover
Air filer is like that sometimes, make sure it's facing the correct way
Hoses on frame is crankcase vent system, it condenses in frame then drains back in block. Follow the hoses, checkball is on top of bellhousing in vent tube.
Tune the bike up, Throttle body set up makes the difference.

Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 11:11:11 AM
First of all welcome to the forum, you are in the right place. What year is your 1100i?
This is a manual for the early fuel injection systems.
https://www.dpguzzi.com/efiman.pdf
Item (3) in the second picture is the fuel pressure regulator, it shows yellow hoses going to the manifold but that is an early idea, usually the regulator is referenced to atmosphere (no hose) and the fuel pressure is kept constant.
Is the ignition cutting out with wide throttle openings? That can be caused by bad high tension leads, a quick check is to measure the resistance from plug cap to chassis, should be the same on both sides and around 6-8K Ohms, sometimes they are fitted with carbon core wire, copper core is the way to go.

Thanks a lot!

That's definitely the pressure reg, cheers, although I do have those hoses that go down to the manifold.

I'll check the cap resistance, never thought of it as ignition cutting out. I guess first I'll see was it just bad/wrong plugs, but the rest is good to know for future/current service anyway.
Title: Re: Few questions about a cali 1100i?
Post by: guzzisteve on January 16, 2021, 12:27:34 PM
You can just take EVAP cannisters & hoses off. Vent tank hose down to fresh air, install a hose from R/H manifold to L/H one. I will run better.
Slide intake tubes into airbox and clean injector body on each side, set your TPS, bleed airscrews on throttle bodies, then sync and it's tuned.
Title: Re: Few questions about a cali 1100i?
Post by: John A on January 16, 2021, 01:12:33 PM
Check that the sidestand switch is either adjusted or disconnected.  I disconnect mine because it caused the bike to die when I rode through a flooded spot on the road and I had to put my feet down. On my way to work at the airbase where they put importance on shiny shoes and pressed trousers. Keep the nut on top of the sidestand pivot tight.
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 16, 2021, 02:49:06 PM
That last picture is the main crankcase breather hose.  It will purge oil mist and make a right mess of everything.  Change it.
Not sure where the fuel filter is on the 1100i.  For the '98EV it is up in center of the tank tunnel.  Bear to get at.
If the bike is new to you, learn how to set and adjust the Throttle Position Sensor.  Maybe clean it out?  Maybe replace it?

Where are you located?  Your profile doesn't specify.  Maybe somebody local can advise.

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 03:09:53 PM
Cali 1100i '93 - '97.  Your fuel filter is in the tangled mess of wire & hoses.  It's a canister type inline gas filter.  Same size as one for a Porsche.  Anyone can correct me.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 03:46:40 PM
Cali 1100i '93 - '97.  Your fuel filter is in the tangled mess of wire & hoses.  It's a canister type inline gas filter.  Same size as one for a Porsche.  Anyone can correct me.

Right, according to kiwi-roy and his https://www.dpguzzi.com/efiman.pdf, it's the 3rd photo, canister job, although guzzisteve says it's EVAP? But I might trust that PDF first, also this pic from some german parts fiche:

(https://i.ibb.co/QFRrpCk/Screen-Shot-2021-01-16-at-21-35-43.png) (https://ibb.co/QFRrpCk)


Funny how the book I got with it doesn't mention the filter but Kiwi-roy's PDF says to change it every 6, 200 km. Anyway, I think I'll change it for peace of mind, even though it looks like a pain in the ass to get to

Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 03:53:30 PM
Here's a manual that covers what you ask------

https://guzzitek.org/atelier/gb/1100/California1100_Atelier_Compil.pdf

The cannisters are EVAP for gas fumes.
Gas filter is in line with the pressure regulator which is the 4th photo down.
Fuel pump is on frame under L/H cover
Air filer is like that sometimes, make sure it's facing the correct way
Hoses on frame is crankcase vent system, it condenses in frame then drains back in block. Follow the hoses, checkball is on top of bellhousing in vent tube.
Tune the bike up, Throttle body set up makes the difference.

Thanks GuzziSteve, that manual has no English, and it doesn't actually cover my model, but maybe there's some common info that I can translate out of it.
I think the canister is the fuel filter ?
Air filter fins are facing up, as per photos...

(https://i.ibb.co/QcnCw04/Screen-Shot-2021-01-16-at-21-50-46.png) (https://ibb.co/QcnCw04)


"checkball is on top of bellhousing in vent tube"...not sure what you mean by this? Figured it was breather, must change it out, even though it also looks like a pain to get to.

I have the diagnostic cables ordered and GuzziDiag on standby so I'll look at the TPS when they come through. Another bramble to navigate no doubt...

cheers

Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 03:54:55 PM
It's #1.  You can back flush with carb spray cleaner.  Spray a lot of it into both ends to dislodge debris.  Blow air into the outlet side to reverse flow.  Confirm no blockage by blowing from inlet side.  If restricted repeat.  Check fuel lines for cracks etc.  You might have either bolt on or clamps.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 03:55:52 PM
That last picture is the main crankcase breather hose.  It will purge oil mist and make a right mess of everything.  Change it.
Not sure where the fuel filter is on the 1100i.  For the '98EV it is up in center of the tank tunnel.  Bear to get at.
If the bike is new to you, learn how to set and adjust the Throttle Position Sensor.  Maybe clean it out?  Maybe replace it?

Where are you located?  Your profile doesn't specify.  Maybe somebody local can advise.

Patrick Hayes
Fremont CA

I'm in Ireland, probably not too many Cali's over here...but hey. I'll look into the TPS now once the diagnostic cables come in. Does it need replacing often? Think I've found the fuel filter anyway. Still unsure if there's two tube-screen filters in the tank...? Will find out when I pull them anyway
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 03:57:40 PM
It's #1.  You can back flush with carb spray cleaner.  Spray a lot of it into both ends to dislodge debris.  Blow air into the outlet side to reverse flow.  Confirm no blockage by blowing from inlet side.  If restricted repeat.  Check fuel lines for cracks etc.  You might have either bolt on or clamps.

It's not #1, that's the pump, it's #12
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 04:00:09 PM
It's #1.  You can back flush with carb spray cleaner.  Spray a lot of it into both ends to dislodge debris.  Blow air into the outlet side to reverse flow.  Confirm no blockage by blowing from inlet side.  If restricted repeat.  Check fuel lines for cracks etc.  You might have either bolt on or clamps.

Are you talking about back-flushing the pump or the filter?

For the record, I didn't ask about the pump at all, GuzziSteve also mentioned it. There's no trouble with the pump, I know where it is and it seems to be working. If my blank spots in acceleration are a pump fault then fine, I'll eat my hat
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 04:09:36 PM
It's not #1, that's the pump, it's #12

You're right.  I didn't put the 2 in.  Flushing the fuel filter.  You can test without removing.  Disconnect line from filter on the outlet side.  Turn ignition on.  Have a cup available.
Title: Re: Few questions about a cali 1100i?
Post by: chuck peterson on January 16, 2021, 04:10:52 PM
Welcome!

Not shifting at 3k are we and adding a chunk of throttle? That would do the plugs that way..With redline above 8k i love 5k to 6k without speeding. Italian tune up time? Great bike..cleanup here and there should make it a monster

I’m really not diagnosing just pointing my nose where no one has. My apologies if its not likely a problem
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 16, 2021, 04:17:59 PM
You say blank spots. You mean like your holding the throttle and then want to speed up just a touch and the bike just holds speed or cuts out. Or your rolling on the throttle and it feels like the bike won't go and then does.

That "could" be the TPS. It's easy enough to test with a multimeter. Here are two more places to read about the tune up for EFI Guzzi. EFIMAN as suggested is great, but kinda technical. Read the part about testing the TPS, but for the moment don't worry about the numbers you need to know what ECU you have for that. Hook the multimeter per the instructions and slowly twist the throttle. Your looking for areas where the voltage does not change while twisting the throttle. I think it suggest to use  2 paperclips to insert into the TPS connector, if not, they work well or even sewing needles or pins.

https://bradthebikeboy.blogspot.com/2012/10/throttle-position-sensor-setting_21.html

https://archive.guzzitech.com/EVTuneup-Jeff_B.html

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 04:18:49 PM
Cruise at 4K rpm's and above.  Shift at 5K rpm's.  Chuck's right.  Try that first.  You'll hardly ever use 5th gear.  1st and 2nd gear around town.  3rd on most country roads.  4th gear on highways.  5th gear when they're no police around.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 04:20:12 PM
Welcome!

Not shifting at 3k are we and adding a chunk of throttle? That would do the plugs that way..With redline above 8k i love 5k to 6k without speeding. Italian tune up time? Great bike..cleanup here and there should make it a monster

I’m really not diagnosing just pointing my nose where no one has. My apologies if its not likely a problem

....eh.....what's the diagnosis here? ?
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 16, 2021, 04:21:23 PM
Check here for the English manual and parts diagram for your model.

https://www.thisoldtractor.com/moto_guzzi_tonti.html

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 04:24:05 PM
....eh.....what's the diagnosis here? ?

Don't ride it like a Harley.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 05:02:42 PM
Check here for the English manual and parts diagram for your model.

https://www.thisoldtractor.com/moto_guzzi_tonti.html

Tom

Thanks Tom H, this is an OK manual, but it is only 50 pages and doesn't really cover that much. For example, it doesn't mention the fuel filter at all, I had looked at that before I posted this. There is an exploded diagram of the fuel system but nothing is labelled and it there is no reference to it unfortunately.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 05:04:40 PM
You say blank spots. You mean like your holding the throttle and then want to speed up just a touch and the bike just holds speed or cuts out. Or your rolling on the throttle and it feels like the bike won't go and then does.

That "could" be the TPS. It's easy enough to test with a multimeter. Here are two more places to read about the tune up for EFI Guzzi. EFIMAN as suggested is great, but kinda technical. Read the part about testing the TPS, but for the moment don't worry about the numbers you need to know what ECU you have for that. Hook the multimeter per the instructions and slowly twist the throttle. Your looking for areas where the voltage does not change while twisting the throttle. I think it suggest to use  2 paperclips to insert into the TPS connector, if not, they work well or even sewing needles or pins.

https://bradthebikeboy.blogspot.com/2012/10/throttle-position-sensor-setting_21.html

https://archive.guzzitech.com/EVTuneup-Jeff_B.html

Tom

Thanks Tom H, I'll look into these. It's more like the latter problem. Open road in front of me, and i'm max-ing out each gear to see how the response is on my way to top speed. Rolling, as they say.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 16, 2021, 05:09:21 PM
Welcome!

Not shifting at 3k are we and adding a chunk of throttle? That would do the plugs that way..With redline above 8k i love 5k to 6k without speeding. Italian tune up time? Great bike..cleanup here and there should make it a monster

I’m really not diagnosing just pointing my nose where no one has. My apologies if its not likely a problem

Ok, Chuck, I get what you're saying, or as Tom puts it; "Cruise at 4K rpm's and above.  Shift at 5K rpm's.". I have only been on two journeys with it, but I do not treat it so kindly, I am testing its power and opening it up, but maybe the POs had driven it like that.

I did notice 5th gear seems...unecessary? Or way to high for any speed under 100k. Why is this? What is it about the ratio/torque?

Anyway, without getting too technical, I won't treat it kindly 5k-6k.

What's Italian tune-up? Drive it like you stole it? ?
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 16, 2021, 05:14:02 PM
If it's the tps.  Contacts in the TPS may have crud on them.  Either replace or just for the heck of it.  You could trying spraying electric contact cleaner in to it to flush/clean the contacts.  Drill a small hole into the top of the ups.  Be very careful and don't force it.  Use a Dremel type tool.  Insert nozzle of contact cleaner and spray. 

You can't hurt the engine.  It'll hit a rev limiter before you shift.
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 17, 2021, 12:11:17 AM
I think you have the same TPS as my 98EV.  You can drill a hole as shown here by the little white spot.   Spray in 'tuner cleaner', work the pivot, blow it out with air.  Rinse and repeat.


(https://i.ibb.co/ZKtvN87/tpshole.jpg) (https://ibb.co/ZKtvN87)


Maybe I'll come over and set it up for you!!!!

Patrick Hayes
Fremont, CA
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi_Roy on January 17, 2021, 01:05:14 AM
I think you will have one of the large pizza box P8 ECUs as shown in the Efiman manual, Item (1) on the first picture
https://www.dpguzzi.com/efiman.pdf
The cover can slide off the connector so you can measure the TPS from pin 17 to chassis (or pin 11). If you look at the diagram on page 26 you will see its connected from pin 11 Ground to pin 30 +5 volts
Pin 17 should be 150 mV with the throttle closed from memory and as you slowly open the throttle you will see it ramp up to around 4 Volts, if it does that without jumping around its fine
Someone please confirm the mV, is it 150 with the idle stop backed right off, something higher at idle?

Sometimes if the high tension leads are open the bike will seem ok but when you open the throttle to accelerate it will start to miss on one or both cylinders, with extra pressure in the cylinders its harder for the spark to jump the gap. The leads often lose contact at the ends and start arcing inside, checking with your Ohmmeter from the plug cap will confirm that.
You don't need resistor wire AND resistor caps OR resistor plugs just one lot of 5k Ohms and the resistance of the coil.

If the tank gets any rust build up it flakes off and goes thru the pump which grinds it up super fine and collects on the surface of the filter, it's trapped there and will eventually choke off the fuel flow causing the bike to bog down on a hill. If you remove the filter and let the fuel inside run back out the inlet it will take most of the rust with it.
I believe your tank also has strainers on the petcocks, they can restrict flow also. Later models also have an electric petcock, chrome plated thing with a couple of wires screwed in where a normal petcock would be, I don't think yours will have that, let us know.
If the filter plugs the pump will get really noisy as the pressure shoots up to over 70 psi and it relieves internally (page 5)

You have enough homework to keep you busy for a while LOL
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 17, 2021, 03:49:34 AM
Thanks Kiwi-Roy

I think you will have one of the large pizza box P8 ECUs..
There's a pizza there alright, I will check the voltage and maybe spray or replace the TPS if there's anything weird then.


You don't need resistor wire AND resistor caps OR resistor plugs just one lot of 5k Ohms and the resistance of the coil.
Will check this, simple enough procedure and I think I have copper core lying around somewhere to replace it

If the tank gets any rust build up it flakes off and goes thru the pump which grinds it up super fine and collects on the surface of the filter, it's trapped there and will eventually choke off the fuel flow causing the bike to bog down on a hill. If you remove the filter and let the fuel inside run back out the inlet it will take most of the rust with it.

If I get to the filter I'm just replacing it, looks rusted and probably stock at this stage

I believe your tank also has strainers on the petcocks, they can restrict flow also. Later models also have an electric petcock, chrome plated thing with a couple of wires screwed in where a normal petcock would be, I don't think yours will have that, let us know.
If the filter plugs the pump will get really noisy as the pressure shoots up to over 70 psi and it relieves internally (page 5)

Will let you know, I'm guessing strainer type. I don't think it's fuel starvation anyway, personally. I just want to check the filters as part of routine service before something bad happens. The pump is loud priming but other than that I don't notice it, tank is in good condition inside also.

You have enough homework to keep you busy for a while LOL

Off to my room then...
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 17, 2021, 03:51:01 AM


Maybe I'll come over and set it up for you!!!!



Thanks Patrick! You're more than welcome, I'll look at them now after a voltage test. Tuner cleaner being carb cleaner? ?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 17, 2021, 03:51:54 AM
You can't hurt the engine.  It'll hit a rev limiter before you shift.

Clever girl! Good to know, thanks Tom
Title: Re: Few questions about a cali 1100i?
Post by: guzzisteve on January 17, 2021, 11:56:31 AM
They mounted the EVAP can(black) one on each side next to rear fender off of frame.
If you follow hoses from intake, they should end up there.
Should be in parts book if you have emissions in Ireland.
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 17, 2021, 02:45:57 PM
Thanks Patrick! You're more than welcome, I'll look at them now after a voltage test. Tuner cleaner being carb cleaner? ?

NO.  Carb cleaner has petro distillates that will contaminate and have particles cling to your contacts.  Electronic parts spray cleaner.  Leaves no residue.

If you have to buy another TPS.  You can buy one from at a HD dealer.  Just give them the part number.  Don't tell them that it's going onto a Moto Guzzi.  You can probably buy on Ebay.
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 17, 2021, 10:58:25 PM
See this old thread if you want to replace the TPS.  The Harley part is (was) a lot cheaper.  I think one of my EV's has the Harley TPS or it is in my tool bag as a road spare.  I couldn't tell the difference.

https://wildguzzi.com/forum/index.php?topic=97625.0 (https://wildguzzi.com/forum/index.php?topic=97625.0)

The TPS setup is 150mV with linkage fully disconnected and butterfly backed off all the way.  Once reconnected and adjusted, the TPS will read something like 385mV.  It is VERY sensitive.  Just tightening the screws can move it 50mV plus/minus.  Be prepared to fiddle with it.  Pretty much set and forget once you get it right.  Nothing to make it change unless the electrodes get dirty inside or someone tampers with the screws.  BTW, the reason the sweeper electrodes get dirty is because the TPS resides BELOW the throttle body.  When you stop the motor, there may be some fuel mist in the intake tract.  That fuel condenses and drips down the butterfly shaft and into the TPS.  Once it evaporates, all the fuel additives leave a residue film behind.  Hence the reason that electronics tuner cleaner can restore the rheostat function.

Look again at your spark secondary wires.  Especially look at the right side wire, about halfway down where it passes the base of the cylinder.  I have seen a number of them seriously chaffed here and sending stray sparks all over.  Wrap with protective sheath as necessary.

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: ejs on January 18, 2021, 02:48:52 AM
On my EV the TPS had a weared out part off carbon track on the plastic foil inside. Just at cruising speed. Got a TPS from a Ducati.(identical)  :thumb:
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 18, 2021, 06:00:42 AM
NO.  Carb cleaner has petro distillates that will contaminate and have particles cling to your contacts.  Electronic parts spray cleaner.  Leaves no residue.

If you have to buy another TPS.  You can buy one from at a HD dealer.  Just give them the part number.  Don't tell them that it's going onto a Moto Guzzi.  You can probably buy on Ebay.

I'll have a look, thanks. Electronic parts cleaner so just isopropyl alcohol?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 18, 2021, 09:58:16 AM
Is this the TPS? Looks like a pain to get to, remove linkage arms etc?


(https://i.ibb.co/ZGX9Qqh/TPS.jpg) (https://ibb.co/ZGX9Qqh)
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 18, 2021, 10:52:31 AM
TPS S/B under the LH TB. Look at the posted pic and you'll see the same under the TB.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 18, 2021, 11:34:53 AM
TPS S/B under the LH TB. Look at the posted pic and you'll see the same under the TB.

Tom

Found it sorry, didn't realise there was only 1, I thought each manifold had one. Looks pretty cruddy to be honest, rubber on the manifold there doesn't look to good either. I've get the meter on it and then pull it...

thanks
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 18, 2021, 12:45:25 PM
I did a quick check on Ebay out here.  They're different vendors selling TPS's.  YMMV in Ireland with Ebay UK???

What color is your bike?  OEM?
Title: Re: Few questions about a cali 1100i?
Post by: ejs on January 18, 2021, 01:03:06 PM
Is this the TPS? Looks like a pain to get to, remove linkage arms etc?


(https://i.ibb.co/ZGX9Qqh/TPS.jpg) (https://ibb.co/ZGX9Qqh)


Fuel injector🤠
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 18, 2021, 01:06:44 PM
tps would be similar to this.        https://www.amazon.com/Throttle-Position-Sensor-Potentiometer-California/dp/B07ZQM66J1
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 18, 2021, 03:51:29 PM
HD makes two very similar versions (Marelli actually).  Look at Tom's picture.  You need the one that has the semi-circular slots Tom shows to allow for rotational adjustment.  The similar version just has round holes to take the fixing screws and is thus NOT adjustable.  That one would be for a different bike where adjustment is done via software.

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: ejs on January 18, 2021, 04:59:22 PM
The original TPS is a PF3C. The Harley one is a PF4C. "Almost identical"  :shocked:
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 18, 2021, 06:48:53 PM
tps would be similar to this.        https://www.amazon.com/Throttle-Position-Sensor-Potentiometer-California/dp/B07ZQM66J1

This one pictured is the PF3C.
Title: Re: Few questions about a cali 1100i?
Post by: LowRyter on January 18, 2021, 07:25:57 PM
good luck finding a Harley TPS

This one is supposed to be the plug and play to the Italian bikes, PF3, not PF4.  I think all of them are Chinese knock offs now but that's all we can find.

https://ca-cycleworks.com/pf3c.html


reading ahead, it was determined to be incorrect.  The striked info applied to 1998 and later models.
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 18, 2021, 07:42:55 PM
Y'ep exact same one I posted earlier.
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi Dave on January 18, 2021, 08:48:34 PM
I think you have the same TPS as my 98EV.  You can drill a hole as shown here by the little white spot.   Spray in 'tuner cleaner', work the pivot, blow it out with air.  Rinse and repeat.


(https://i.ibb.co/ZKtvN87/tpshole.jpg) (https://ibb.co/ZKtvN87)


The specified TPS for the California 1100i is a PF09
Title: Re: Few questions about a cali 1100i?
Post by: ejs on January 19, 2021, 12:52:20 AM
The older TPS... PF09

(https://i.ibb.co/SJF5M4h/Screenshot-2021-01-19-07-48-52-739.jpg) (https://ibb.co/SJF5M4h)
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 19, 2021, 07:55:28 AM
The specified TPS for the California 1100i is a PF09

Seems right, have a look at this, but bear in mind my frame number is 152XX;


(https://i.ibb.co/6DJcM74/Screen-Shot-2021-01-19-at-13-45-17.png) (https://ibb.co/6DJcM74)


That said, it looks like someone has put on a PCF3, not sure would it affect it?



Title: Re: Few questions about a cali 1100i?
Post by: lad on January 19, 2021, 09:49:34 AM
The potentiometer in question...nothing ever looks good under a phone flash


(https://i.ibb.co/jk6XhfV/IMG-5593.jpg) (https://ibb.co/jk6XhfV)

imagehosting (https://imgbb.com/)


To my eyes, it looks like the PF09 would line up better with the injector housing and would have that little gap....?
Title: Re: Few questions about a cali 1100i?
Post by: LowRyter on January 19, 2021, 10:35:02 AM
The specified TPS for the California 1100i is a PF09

https://ca-cycleworks.com/pf09.html
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 19, 2021, 11:10:20 AM
https://ca-cycleworks.com/pf09.html

Yeah that's the fellow, here's one in Germany at a good price if anyone is watching this from the EU

https://www.ebay.ie/itm/NEU-Ducati-TPS-Sensor-PF09-04-SBK-ST4-ST3-ST4s-SP-Poti-TP/183492007624?hash=item2ab8f9d6c8:g:O9AAAOSwhhlbyHLt&shqty=1&isGTR=1#shId
Title: Re: Few questions about a cali 1100i?
Post by: guzzisteve on January 19, 2021, 11:35:10 AM
There is a # on the sensor & wire goes in from it's side.
Title: Re: Few questions about a cali 1100i?
Post by: John A on January 19, 2021, 11:54:31 AM
I think of it like this: fourth gear is overdrive and fifth is double overdrive. Spend most of your time in third or if there is no load , fourth. They are geared tall, always have been. Third is great for hills and passing.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 19, 2021, 12:28:50 PM
There is a # on the sensor & wire goes in from it's side.

What are you talking about? The TPS? It's long since located and identified
Title: Re: Few questions about a cali 1100i?
Post by: guzzisteve on January 19, 2021, 01:08:59 PM
Never mind then.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 19, 2021, 01:36:54 PM
Never mind then.

I didn't mean to sound dismissive, just trying to keep all these information-plates spinning, it's all new to me.

I can't back-probe the TPS, just isn't working for me, not sure what i'm doing wrong. I'm going to try read it off the P8. How awkward is it to remove the passenger seat? The ECU pulls down enough probably, but just wondering.

Also the info Tom H sent me from http://bradthebikeboy.blogspot.com/2012/10/throttle-position-sensor-setting_21.html seems waaaay more complicated than the pdf from GuzziSteve, which boils the procedure down to a few steps...


(https://i.ibb.co/fSCtqqd/Screen-Shot-2021-01-19-at-19-30-04.png) (https://ibb.co/fSCtqqd)


What am I missing? Why is one so involved?

The rabbit-hole is mighty and wide
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 19, 2021, 07:23:47 PM
For the moment ignore the voltage reading numbers. You will only care about if the voltage increases smoothly as you turn the twist grip throttle. Latter, if the TPS produces a smooth voltage increase or need to replace the TPS, then the numbers per the instructions/manual will be needed.

You need a multi-meter, digital works for me. A paperclip broken into 2 pieces or a pair of sewing needles or straight pins. Use a pair of alligator clips to hold the multi-meter contacts to the pins.

FYI: Guzzidiag software/ECU reading is mot sensitive enough to read TPS voltage. But it will read the TPS/butterfly degrees.

As in the links I gave you........

With the connector to the TPS connected. Slide the "pins as above" along the wires and into the TPS connector where they enter the plastic connector. You will be looking for contact with the wires in the plastic connector when the pins are slid in deep enough. It may take a few tries.

The only reason for doing it this way is to not put a pinhole in the wire outside the connector that could allow moisture/corrosion in to the wire.

Your TPS in the picture looks kinda grungy. It "could be just fine", but if it were me I would check it before replacing. Always trying to save a buck/pound./Euro.

Hope this helps,
Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 20, 2021, 09:07:27 AM
For the moment ignore the voltage reading numbers. You will only care about if the voltage increases smoothly as you turn the twist grip throttle. Latter, if the TPS produces a smooth voltage increase or need to replace the TPS, then the numbers per the instructions/manual will be needed.

You need a multi-meter, digital works for me. A paperclip broken into 2 pieces or a pair of sewing needles or straight pins. Use a pair of alligator clips to hold the multi-meter contacts to the pins.

FYI: Guzzidiag software/ECU reading is mot sensitive enough to read TPS voltage. But it will read the TPS/butterfly degrees.

As in the links I gave you........

With the connector to the TPS connected. Slide the "pins as above" along the wires and into the TPS connector where they enter the plastic connector. You will be looking for contact with the wires in the plastic connector when the pins are slid in deep enough. It may take a few tries.

The only reason for doing it this way is to not put a pinhole in the wire outside the connector that could allow moisture/corrosion in to the wire.

Your TPS in the picture looks kinda grungy. It "could be just fine", but if it were me I would check it before replacing. Always trying to save a buck/pound./Euro.

Hope this helps,
Tom

I'll give it another go, tempted to just cut into the wire and shrink wrap it after
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 21, 2021, 11:52:27 AM
I can't get it to work...? 

Is there a trick? I can see the pins are coming down and out through the connectors:


(https://i.ibb.co/s55pYRK/IMG-5674.jpg) (https://ibb.co/s55pYRK)


Just not getting a reading, even though I'm getting a reading from other parts of the bike...

Ignition on, bike not running...
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 21, 2021, 12:04:59 PM
Looks like you should have a connection. Ignition on, "kill switch in run position", bike not running. You are looking at under a volt for the idle. IIRR about 4v for wide open. You need your meter on a low volt setting. And again, for the moment, you just want to make sure it increases smoothly, no flat spots while you twist the grip.

While you have the connector off, take the leads of the meter and check between the wires for voltage. It "should be" the ones you are in. Then again check your pins with the meter to make sure they are making contact. Sure looks like they should be.

When I got my EVT, I had to learn about FI. Took a bit and alot of questions here. When in doubt, ask!

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 08:23:15 AM
I have 2 wires reading the 5v from wire to ground, thought there should only be one?
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi_Roy on January 22, 2021, 08:54:46 AM


Also the info Tom H sent me from http://bradthebikeboy.blogspot.com/2012/10/throttle-position-sensor-setting_21.html seems waaaay more complicated than the pdf from GuzziSteve, which boils the procedure down to a few steps...

What am I missing? Why is one so involved?

The rabbit-hole is mighty and wide
They are both correct really but I suggest you use the one from GuzziSteve, the other one mentions 400 mV, thats just the reading at normal idle, the 150mV with the throttle fully closed is the important one, once set you do not touch the TPS screws again.
I have 2 wires reading the 5v from wire to ground, thought there should only be one?
If you are getting 5 Volts on the third pin it's possible your TPS has gone open at the lower end. Most schematics show the TPS as a simple potentiometer but it has some other resistors inside that send it to a default Voltage if the main rheostat goes open circuit, thats why you cannot simply read it with an Ohmmeter.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 10:33:24 AM
Ok, I got a reading, can't even remember why I needed a reading now.

Just to disclose, I wasn't getting a reading because I had the fuel tank off and I pulled the fuel-pump fuse out so as not to spill any fuel. Apparently this messes with the readings, maybe I should have mentioned that. Anyway, progress.

Here's a slo-mo video https://i.imgur.com/0z3rc4t.mp4

Here's a transcription:

0.18
0.21
0.45
0.85
1.37
1.89
2.44
2.88
3.21
3.51
3.66
3.79
3.81
4.08
4.09
4.17
4.27
4.38
4.42
4.48
4.56
4.65
4.76
4.78
4.77
4.69
4.58
4.48
4.34
4.11
4.09
3.81
3.05
2.29
1.23
0.60
0.21
0.18
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 12:03:20 PM
Is this with the throttle stop screw backed out? Or with the screw still screwed in for idle? It looks like the stop screw was backed out.

It looks OK to me until the top where it drops off. I'll check mine latter today to see if mine drops off at wide open.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: ChrisG on January 22, 2021, 12:18:58 PM
This thread is a keeper for me. Thanks everyone.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 01:31:09 PM
Is this with the throttle stop screw backed out?

Tom

I don't know where or what that is yet so I presume it's not backed out and is tuned in...Should be a higher reading at the end? Looks linear anyway, albeit a few bit jumps....?
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 01:49:32 PM
Then if you did not turn any screws and just tested the TPS, I think your initial reading is low. S/B about 400mv which I believe would be about .4 volt, Kiwi_Roy????? The top drops off, that doesn't look right. The middle advanced ok, but seems high.

I'll check my bike and let you know latter today.

Chasing flat spots can be fun.....Not!!!

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 02:15:47 PM

I'll check my bike and let you know latter today

Chasing flat spots can be fun.....Not!!!

Tom

Thanks Tom, it's especially fun when you're still we behind the ears.

I tested my plug resistance there, left was at 4.7, right isn't really showing up anything, it flashed a reading once but only on 200k scale at 48, so I'm going to swap them out for a new set anyway, no harm.
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 02:45:43 PM
Coil S/B 3k ohm. Cap MAY be resistor, S/B 5kokm. Put one lead of the meter in the plug cap and one to cylinder or frame. S/B about 8k ohm.

Fixing problems long distance makes for alot of questions. But normally well worth it.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 03:22:11 PM
Here are some numbers. Note the dial on the meter. Left image is set on 2V and at idle. Middle is set at 20V at idle. Right is W/O.  I don't have an easy way to up a video.


(https://i.ibb.co/MMvjKVf/20210122-130310.jpg) (https://ibb.co/MMvjKVf) (https://i.ibb.co/HBBqXFW/20210122-130409.jpg) (https://ibb.co/HBBqXFW) (https://i.ibb.co/cYnFSww/20210122-130343.jpg) (https://ibb.co/cYnFSww)

In case we have your head spinning with the voltages. For your test you have done it the right way, you didn't change any of the screw adjustments. You are looking at the voltage with the butterfly open enough for the bike to idle. You should have a reading about where the middle picture is or down to about .4V on the 20V scale. This is what you would end up with when you finish with the instructions.

The instructions that you were pointed to were mainly to see how to attach your meter. The instructions that show about .135-.165 is with the idle stop screw fully backed out, butterfly fully closed and the link rods between the TB's off. This gives a baseline for the ECU to know where a fully closed throttle is. Some say it's not worth the time to do this and instead just go .4-.5V where the bike would idle atand be done with it.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Vagrant on January 22, 2021, 03:28:41 PM
https://ca-cycleworks.com/pf09.html

I kept this site in Conyers Ga. I think the prices are very good and it looks like he has all of the ones we might use.
But, are they real or cheap Chinese junk?
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 03:55:35 PM
This part of instructions below explains a bit about what idle voltage S/B. You should have the big ECU under the rear of the driver seat. I do not think it matters which ECU you have anymore. You just go by the new number. Please correct me if I'm wrong.

"9. Turn the ignition on and kill switch on but do not start the bike. With the throttle plate stop screws backed off, your multimeter Should read 150mv across the two wire positions you traced out.  If not, loosen the 2 screws that hold the TPS to the throttle body and rotate it to get 150mv and re-tighten screws.

10. Turn in TPS side throttle plate stop until you get 500 to 525mv on your multimeter.  Turn in the non-TPS side throttle plate stop screw until it just touches the butterfly stop. Most folks will tell you 360-380mv  but this is wrong for the new bikes with 1.5M computers.  500-525 is the correct number for the new machines. After this step, do not touch the TPS side throttle stop screw!"

Step 10 shows the number you should be at right now at idle without adjusting any of the screws. Again if I read your numbers right, you are way low at idle, but just about right for W/O until it drops off.

MAYBE........If the TPS is not adjusted right at the running idle of .5V, MAYBE it runs out of..... UMMMM... area to get numbers from??? Any thoughts Kiwi??

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 04:43:58 PM

MAYBE........If the TPS is not adjusted right at the running adle of .5V, MAYBE it runs out of..... UMMMM... area to get numbers from??? Any thoughts Kiwi??

Tom

i see, i see, well...the head is spinning slightly, but less than it was. Thanks for for pictures and test. I'm assume your bike is running sweet as a sparrow? What ECU is in your bike? What's your bike? I'm not sure on the differences between models yet either.

I'll have to look into further, did you quote this- https://www.dpguzzi.com/efiman.pdf -in the instructions there?

Where I'm confused now is that the idle is apparently set at the trimmer at the ECU, so I'm not sure what the I should be reading regarding throttle stop screws, or which one to adjust first etc....they say the trimmer is the last step. Should I adjust the mechanical screws to get those idle readings?

I have a set of carbtune pro there too at the ready, as per the bradthebikeguy(?) instructions floating around...

quagmire, to say the least.

Title: Re: Few questions about a cali 1100i?
Post by: lad on January 22, 2021, 04:45:40 PM
I kept this site in Conyers Ga. I think the prices are very good and it looks like he has all of the ones we might use.
But, are they real or cheap Chinese junk?

I can't vouch for anything in America, I see they have it marked as their own brand, which could suggest chinese, but everyone is linking to it. I have found a different make of PF09 in Germany, closer to home, that I can pull the trigger on if things get too hairy.
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 22, 2021, 05:26:32 PM
Where I'm confused now is that the idle is apparently set at the trimmer at the ECU, so I'm not sure what the I should be reading regarding throttle stop screws, or which one to adjust first etc....they say the trimmer is the last step. Should I adjust the mechanical screws to get those idle readings?

You have an 1100i (probably 1995-96).   You have the P8 computer under the seat.  Don't pay any attention to instructions for the M15 computer.  Your TPS has an adjustable position.  The newer model bikes (after 2000) use a fixed position TPS and adjustments are made by software.

The trim control in the P8 computer is a simple rheostat which controls relative fuel mixture at idle.  It has no direct connection to idle speed or TPS setting.  It is rarely adjusted.  Usually not more than half a turn if at all.  The rheostat can turn about 3 full turns in each direction.  It then has an internal  slip clutch so it can keep turning and  turning without further effect.  Turning in either direction you can feel it bump up against the slip clutch.  Count the number of full turns.  Base setup is probably halfway between the two extremes.  Usually only adjusted if you find excessive 'popping' on overrun or downhill run with throttle backed off.

Set your TPS at its base 0.150mV.
Connect linkage and get the bike running and idling.
Use carbtune to inspect intake vacuums and adjust the left side adjuster for equal idle balance.
You can recheck the TPS which should now read about 0.400mV.

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: LowRyter on January 22, 2021, 05:54:15 PM
I kept this site in Conyers Ga. I think the prices are very good and it looks like he has all of the ones we might use.
But, are they real or cheap Chinese junk?

I think all of them are Chinese Junk -whatever brand.  These are probably as good as any.  Available and won't break the bank.  Pay $300 and get the same thing.  BTW- what do you call the one that came on the bike in the first place, cheap German junk?
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 22, 2021, 06:37:08 PM
lad, so you have confirmed the low and top numbers are way off from my pictures?? If so.......

There are a few ways to go with this depending on your pocketbook and how much trial and error you are willing to put up with.

Your issue of flat spots can be a number of things. TPS, coils, plug wires, plug caps, bad wire connection in the bikes harness, cracked rubber boot from TB to cylinder heat ect.. From your description, I was thinking TPS. You did the check without changing anything. To me the numbers are wrong.

The PO could have changed the TPS and never set it properly. Trying to be cheap, you could take the time to follow the instructions in the links provided and correctly set the TPS. The TPS could be faulty and you wasted some time, maybe a few hours to try to make it work right.

If you want to try to adjust the TPS, I would just try for the idle voltage first rather than the baseline. I would hook up your meter and loosen the TPS screws and try to get it at about .450-.500V. Make sure you do read the "." not 5.00 volts. If you want to try this, you do not need to adjust idle screws, linkages and all the rest in the instructions.

Then I would read the voltage as you twist the throttle grip and see if it looks better and then take it for a spin and see how it runs.

You could also try to clean the TPS before replacing it. Some searching here for a fairly recent post will explain how. May not work, but it may have saved a buck/Euro.

If you decide to replace the TPS, then I would be inclined to follow the instructions and go from the baseline with the throttle stop screws loosened and linkages removed. It's not hard, just takes time and some patience. With following the instructions, you will have done a "full  set up" for the TB's. OR, you could also just put the new TPS in and adjust for the idle voltage as some say to do.

As far as fuel Trim, your ECU uses a screw. On my 2004 EV Tpuring, the trim is software controlled. The TPS, PF3C, is adjustable. For the moment, I would be less concerned about the trim than the TPS voltage.

You decide on your time, pocketbook on how you would like to proceed. Do not just take what I say as the only answer. Read what others have said and take the hours or minutes that it may take to search here for other answers.

Ask away, good luck!
Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 23, 2021, 02:44:06 AM
lad, so you have confirmed the low and top numbers are way off from my pictures??

Thanks Tom,

Our top numbers are identical, but my low is way lower, so maybe if I start fiddling with the TPS I'll lose that top? Or maybe that's a sign that it's a bit grungey inside and needs a clean?

If i want to remove and clean it, can it just be removed at the two screws or do I have to adjust linkage/etc first?

I reckon it was replaced, all signs point to the fact that this model should have had a PF09, so it could be a case of PO. That said, it has yellow paint on the screws which suggest it was done by somebody who at least thought they knew what they were doing!

Which leads me to the bigger question. If it was replaced, and set up properly, then whey did it fail now. The left boot doesn't look like it's in the best shape, so it could be a case of having multiple issue compound.

I might start with the easy idle voltage and a clean for now, then look at replacing with a PF09 and doing the full set up, while examining the reason for its current glitch.

Should be out of the shed by summer right?
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 23, 2021, 04:50:09 AM
What year is your bike? 
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 23, 2021, 04:53:10 AM
But, are they real or cheap Chinese junk?

Could be cheap American junk. 
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 23, 2021, 05:32:01 AM
What year is your bike?

1996
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 23, 2021, 06:23:20 AM


My ignition wires are labelled 'CAVIS', they are black, but seem to be old, are they vintage? I think they might be carbon core and should be replaced more frequently that a solid or spiral, anyone know about that? Might just swap them out for luck

Also what screws and size are on the TPS? I can't get into them with anything, which might be a headache-in-waiting, or maybe they are blocked with whatever that yellow paint is and I can dig them out
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi_Roy on January 23, 2021, 07:13:16 AM
With the butterfly fully closed the Voltage should be close to 150 millivolts. Thats with the linkage off, the fast idle lever having no effect and the idle screw backed out.
Why 150 millivolts and not zero? If it were zero the TPS might get jammed against its mechanical stop and break so they chose a small way up the scale. It won't go all the way to 5 Volts for the same reason, don't want to hit the travel limit and break something quite delicate.
I watched it several times and it looked much smoother, The first time I was just moving the cursor by hand, the numbers look to be smooth Up and then back.
The idle speed is set by the throttle stop screws, the idle mixture is set by the ECU screw, I found with my P8 the screw cured a backfire on deceleration.

Then if you did not turn any screws and just tested the TPS, I think your initial reading is low. S/B about 400mv which I believe would be about .4 volt, Kiwi_Roy????? The top drops off, that doesn't look right. The middle advanced ok, but seems high.

I'll check my bike and let you know latter today.

Chasing flat spots can be fun.....Not!!!

Tom
Yes 400 mV is 0.4V, Its best to use the 20 Volt range and not change, an old analog meter would have a zero to 10V range and show it better.
I agree with Tom the millivolts at 180 is too low for idle speed of 1100 its 150 at fully closed then when you adjust the throttle stop the butterfly opens so naturally the millivolts rises as well. You don't adjust the TPS to get 400 you adjust the idle stop to get 400 which just happens to be about right for idle, I remember that step confused me when I was learning.

Thanks Tom, it's especially fun when you're still we behind the ears.

I tested my plug resistance there, left was at 4.7, right isn't really showing up anything, it flashed a reading once but only on 200k scale at 48, so I'm going to swap them out for a new set anyway, no harm.
Seems like you may have a break in the lead then, 4.7k seems a bit lower than I have seen but don't worry if they are both the same, you could try shortening the lead by half an inch or so, they often go open at the end.
I would replace the leads with copper core and resistor caps if it doesn't have them already. Some plugs end in the letter "R" I think that denotes they have a resistor in the plug, you could use a non-resistor cap in that case. About 1970 the resistor was added to avoid radio and television interference if my memory is correct.
You could also screw the lead out of the coil and measure across the coils to chassis, both should be the same there.

I don't know where or what that is yet so I presume it's not backed out and is tuned in...Should be a higher reading at the end? Looks linear anyway, albeit a few bit jumps....?
Refer to the long winded method Tom H sent you in a link, it shows all the components, the throttle stops are in pictures 4 & 5
 
Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 23, 2021, 12:15:47 PM

My ignition wires are labelled 'CAVIS', they are black, but seem to be old, are they vintage?

In Italian, CAVO is wire or cable, with a plural of CAVI.  So, its like someone labelled your wires as WIRES.

:-)

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 23, 2021, 06:36:50 PM
The TPS screws on my '04 are Torx T-20. I looked at your picture, yes the paint is there, but not in the hole.  You need to give the screws a good wire brushing to be sure if Torx or not.

Kiwi Roy, thank for clearing up the 400mv and .4V. Wanted to be sure I said it correctly.

I have read that provided the idle stop screw has never been moved. You can just set the TPS. I would go with what Patrick said, about .400v. Take it for  ride and see how it does.

If this does not solve your flat spots AND you have looked at ALL other possibilities including the spark plug wires and maybe some spray TB cleaner in the throat of the TB by just pulling back the tubes to the air box, then I would either try to clean the TPS or just replace it. Not knowing the internal specs. between the 9 and the 3 TPS, I would probably go with a 3 for the ease of access for the wire connector.

Hope this helps a bit,
Tom
Title: Re: Few questions about a cali 1100i?
Post by: John A on January 23, 2021, 06:46:45 PM
It needs to be connected while you are measuring it. I used to use a pin but on this site someone found a lead which I bought, maybe if you do a search you can find it. They are cheap and make it easier.
Edit: found it https://www.amazon.com/109172-TPS-Breakout-Dense-Metripack/dp/B014TKDYHC
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 23, 2021, 07:18:37 PM
I use one of those as well. No more fiddling around trying to get the sewing pins to make contact.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Kiwi_Roy on January 24, 2021, 01:52:16 AM
I use one of those as well. No more fiddling around trying to get the sewing pins to make contact.

Tom
When I had an EV with the P8 computer I soldered a short wire onto the large connector terminal 17, on the other end of the wire I crimped a blue crimp connector which is about right to take a meter probe so I could just plug my meter in at any time. The Negative probe was just connected to battery ground or a convenient bolt on the chassis.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 10:21:36 AM
It needs to be connected while you are measuring it. I used to use a pin but on this site someone found a lead which I bought, maybe if you do a search you can find it. They are cheap and make it easier.
Edit: found it https://www.amazon.com/109172-TPS-Breakout-Dense-Metripack/dp/B014TKDYHC

I got a reading alright, it was connected, just disconnect for the picture.

Is reading the TPS that common that you'd need this tool?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 10:25:02 AM
The TPS screws on my '04 are Torx T-20. I looked at your picture, yes the paint is there, but not in the hole.  You need to give the screws a good wire brushing to be sure if Torx or not.

They were a bit clogged with paint but I'm slowly getting a T-20 to catch them i'll try get it to .4 then, thanks.
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 24, 2021, 10:30:08 AM
No not necessary.......Onc e properly set, it stays set.

When I do get to go to a Guzzi get together, I bring my Win tablet and my cables in case a FI bike needs some attention. This cable just makes it easier to hook up my meter.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 10:51:30 AM
No not necessary.......Onc e properly set, it stays set.

When I do get to go to a Guzzi get together, I bring my Win tablet and my cables in case a FI bike needs some attention. This cable just makes it easier to hook up my meter.

Tom

I getcha....sounds like a heavenly scenario
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 10:55:16 AM
How do you change out the ignition leads? ? there's a serious lack of wiggle-room on this bike...

Is it easier to drop down the coils?

Can't imagine getting the new ones on will be fun either?

If I could just take the centre frame off it'd be grand
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 11:03:31 AM
Just to throw another spanner in among the multimeters...

Going through the manual GuzziSteve sent me way back when, (https://guzzitek.org/atelier/gb/1100/California1100_Atelier_Compil.pdf)

It lists the reading at .150, on a PF09...

Relevant? Who knows...

(https://i.ibb.co/YPww4CK/Screen-Shot-2021-01-24-at-16-57-15.png) (https://ibb.co/YPww4CK)
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 24, 2021, 11:40:27 AM
The .150 is when the idle stop screw is fully unscrewed. I would not do this for the time being. Just try to get .400 without messing with the TB idle screw. Again, we want to see if adjusting the TPS solves your flat spots.

If your spark plug wires are bad. Removing the fuel tank would probably be the easiest option. Check your spark plug caps (they should unscrew from the wire) and as mentioned before,  if you have enough wire to trim off about 8-12mm from the end, give that try and test the wire again.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: ejs on January 24, 2021, 12:31:25 PM

(https://i.ibb.co/qMtWWjf/Screenshot-2021-01-24-19-27-38-331.jpg) (https://ibb.co/qMtWWjf)
 :gotpics: :gotpics:
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 24, 2021, 02:27:28 PM
Throwing this in.  The California 1100i's last year was in 1997.  1998 the model was changed to the California EV.  While most components are the same throughout the California, never assume that your bike is identical to other Californias even in the same year of production.  Moto Guzzi has a habit of using different components even in the same year of production to get the bikes out to the dealers.  They could care less about continuity of the production line.  Reference by part number and for the same year of manufacture.  Just a bit of advice when you end up with a head scratching moment.  :shocked:

Degrease the outside of your TPS.   :thumb:
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 24, 2021, 03:14:29 PM
A quick warning about removing the tank.

I believe you should have 2 sets of wires under the tank. One S/B for the fuel level and the other for the petcock. DO NOT MIX THESE UP. Label them to get them back together correctly.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 24, 2021, 03:15:56 PM
Y'ep. 
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 03:20:21 PM
A quick warning about removing the tank.

I believe you should have 2 sets of wires under the tank. One S/B for the fuel level and the other for the petcock. DO NOT MIX THESE UP. Label them to get them back together correctly.

Tom

thanks Tom, only 1 set there, on the left, little clip thing beside petcock
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 24, 2021, 03:27:58 PM
Sounds like you have a manual petcock rather than an electric. There still S/B another set of wires under the tank tucked somewhere.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 04:32:22 PM

(https://i.ibb.co/qMtWWjf/Screenshot-2021-01-24-19-27-38-331.jpg) (https://ibb.co/qMtWWjf)
 :gotpics: :gotpics:

interesting, a simple rheostat? Easy see how a bit of crud can mess it up. I remember there was one in the fuel tank of a nighthawk I had and it gave me a lot of trouble
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 04:33:23 PM
Sounds like you have a manual petcock rather than an electric. There still S/B another set of wires under the tank tucked somewhere.

Tom

Yeah two little levers, electric sounds handy, just opens when you turn the key?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 24, 2021, 04:35:59 PM
The .150 is when the idle stop screw is fully unscrewed. I would not do this for the time being. Just try to get .400 without messing with the TB idle screw. Again, we want to see if adjusting the TPS solves your flat spots.

If your spark plug wires are bad. Removing the fuel tank would probably be the easiest option. Check your spark plug caps (they should unscrew from the wire) and as mentioned before,  if you have enough wire to trim off about 8-12mm from the end, give that try and test the wire again.

Tom

I see. It doesn't say much in that manual so maybe they just left out the pertinent stuff for the laugh.

Tank is off, but the coils are up under the frame and behind the cylinder head, hard to get a twist on them. I read their resistance from wire to a chassis bolt at 3k each, but I want to switch to copper core anyway, to get it all from 13k to 10k (which is apparently better.....?)
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 24, 2021, 06:15:01 PM
If you are reading the wire only, not including the spark plug cap, 3k ohm would be right and your plug wires are acceptable provided they don't put on  light show at night.

If you want to do up the plug wires, also get NGK plug caps. LB05? 5 is the resistance and then the last digit depends on if you want the style that goes over the screw on bit on the spark plug or just slides on the plug stud without the screw on bit.

Your getting there!
Tom
Title: Re: Few questions about a cali 1100i?
Post by: John A on January 24, 2021, 06:16:20 PM
I got a reading alright, it was connected, just disconnect for the picture.

Is reading the TPS that common that you'd need this tool?


No you don’t need it, just nice to have. Less fooling around. TPS is set and forget unless it wears and changes or it goes kaput, both of which can happen but it’s not common and it won’t stop you on the side of the road.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 09:26:34 AM
Ok, sorry to be flogging the horse here now but...before I go at it I'm just reading back over to make sure I'm doing it right, I have some conflicting info from Kiwi_Roy and Tom H, I think, maybe one can clear it up?

You don't adjust the TPS to get 400 you adjust the idle stop to get 400 which just happens to be about right for idle, I remember that step confused me when I was learning.

then...

Just try to get .400 without messing with the TB idle screw. Again, we want to see if adjusting the TPS solves your flat spots.


Which do you think is best to do? TB or TPS?

thanks guys
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 10:07:35 AM
just to clear up an earlier question for current/future readers.

The ignition coils were easy get to , just two hex screws holding each one inside a metal rail, the whole thing just drops down. The wires don't screw out either, they have a crimped connection that pops in. I'll have to look at finding these somewhere, surely common enough.

The wires had 0 resistance, the 3k i was getting was from coil to chassis.

One job down


(https://i.ibb.co/zNnf2Jm/IMG-5780.jpg) (https://ibb.co/zNnf2Jm)


(https://i.ibb.co/z6KDV6s/IMG-5781.jpg) (https://ibb.co/z6KDV6s)


(https://i.ibb.co/RvSKb8n/IMG-5782.jpg) (https://ibb.co/RvSKb8n)
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 25, 2021, 11:08:15 AM
On the plug wires. You should be able to buy just the metal crimped on end at an auto parts store. There is a nice tool for crimping it, but a classic slip joint pliers will do the job.

We have all given you correct info on the TPS setting. There are different ways to get the same result.

Kiwi.....His info is when you want to start from scratch and follow from step #1 any of the instructions listed for a complete job of TPS and TB balancing. Very good idea!!! This makes sure everything is correctly set. But, it takes time.

My way.... I think your TPS is bad?? I could be completely wrong?? Your voltage for idle is way low. So at the very least, it is not adjusted properly. Provided that the TB adjustment screws, including idle screw, have not been messed with and the bike is idling acceptably, I would just rotate the TPS (we are talking 1-2mm at a time watching your meter, doesn't take much) and adjust it to get .400V. Then take it for a ride.

Ride it on the same streets that you were having issues with flat spots and see if there is any change. See if it feels peppier, or feels lack of power with the new TPS setting. Heck, it could even start billowing out black smoke from being too rich with the new TPS setting???? Hope not!!!

With my quick way, you still may need to do the complete TPS and TB adjustment. Again, with the numbers you provided, adjusting the TPS could solve the problem????? OR.....do nothing at all.

And again, with the numbers you provided, I don't understand why at full throttle, the numbers start falling. IT "Should" just hold the high number.

Hope this helps,
Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 11:22:19 AM

And again, with the numbers you provided, I don't understand why at full throttle, the numbers start falling. IT "Should" just hold the high number.


woah woah woah, hold it up there, they don't start falling, that's me rolling off the throttle after it peaks at 4.78! Sorry, should've mention that.

Still though it's the low end we're worried about.

I can feel those bloody torx screws starting to strip...precarious position now  :thewife:
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 25, 2021, 11:36:26 AM
OK got it, thought that was holding at W/O. My bad.

On the screws. If they won't budge, I think you can grab them with vice grip pliers. You "should" be able to get replacement Torx screws at a auto or hardware store. I think Torx may be it's own thread, so a Torx is a Torx. Never really looking into Torx to know for sure.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 12:09:09 PM
Well I got it off, smells a lot like petrol and looks wet inside, normal? Sounds like that's a deeper problem if not.

did i read somewhere about swapping out those TPS torx for a stainless steel alternative? Hard to get the right angle on the one above the starter motor, so medium stripping-risk...I found


(https://i.ibb.co/b3GZ3qR/Screen-Shot-2021-01-25-at-17-35-01.png) (https://ibb.co/b3GZ3qR)


(https://i.ibb.co/Qr2MyX5/Screen-Shot-2021-01-25-at-17-35-08.png) (https://ibb.co/Qr2MyX5)
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 25, 2021, 12:17:30 PM
Don't know what you were using, something like these are a great help. Prices vary so search around:


(https://i.ibb.co/DG9d2dN/71-JXu2-Tm-C4-L-AC-SL1500.jpg) (https://ibb.co/DG9d2dN)


https://www.amazon.com/Titan-Tools-11212-10-Piece-Driver/dp/B00SQ4FN1I/ref=sr_1_18?crid=2MOYVHU6CP7H1&dchild=1&keywords=bit+wrench+ratchet&qid=1611598319&sprefix=bit+wr%2Caps%2C293&sr=8-18

https://www.amazon.com/Neiko-03044A-Ratcheting-Screwdriver-Close-Quarters/dp/B000XYOUS6/ref=sr_1_19?crid=2MOYVHU6CP7H1&dchild=1&keywords=bit+wrench+ratchet&qid=1611598319&sprefix=bit+wr%2Caps%2C293&sr=8-19

Tom

Title: Re: Few questions about a cali 1100i?
Post by: pehayes on January 25, 2021, 12:25:04 PM
Well I got it off, smells a lot like petrol and looks wet inside, normal? Sounds like that's a deeper problem if not.

No, its not normal.  It is excess liquid fuel draining down the throttle body shaft and dripping into the TPS.  (Why didn't they just put the TPS on top?)  The dirty/faulty sweeper connections inside may be contributing to the excess fuel.  Poor state of tune could be contributing to the excess fuel.  Many slow, short trips without fully heating the engine could be contributing to the excess fuel.

I would start by drilling and cleaning with tuner spray and compressed air.  (I posted a location to drill up above.  Drill gently and stop as soon as you pass through the plastic body.)  Reset to proper spec and see how it runs.  Worst case you buy another one.

I don't think Torx screws use anything other than standard threading so you should be able to substitute if you strip a head.

Patrick Hayes
Fremont CA
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 12:34:42 PM
No, its not normal.  It is excess liquid fuel draining down the throttle body shaft and dripping into the TPS.  (Why didn't they just put the TPS on top?)  The dirty/faulty sweeper connections inside may be contributing to the excess fuel.  Poor state of tune could be contributing to the excess fuel.  Many slow, short trips without fully heating the engine could be contributing to the excess fuel.

I would start by drilling and cleaning with tuner spray and compressed air.  (I posted a location to drill up above.  Drill gently and stop as soon as you pass through the plastic body.)  Reset to proper spec and see how it runs.  Worst case you buy another one.

I don't think Torx screws use anything other than standard threading so you should be able to substitute if you strip a head.

Patrick Hayes
Fremont CA

Ok, thanks Patrick. I suppose clean it all up and see if it happens again...will try it on the weekend, or whenever replacements come it. It's really dirt, i wiped down inside and it's black/brown residue.

Anyone know how to read the emissions? All the instructions have that in it, is it through the Guzzidiag?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 12:35:41 PM
Don't know what you were using, something like these are a great help. Prices vary so search around:


(https://i.ibb.co/DG9d2dN/71-JXu2-Tm-C4-L-AC-SL1500.jpg) (https://ibb.co/DG9d2dN)


Tom

Using a lidl ratchet set.

They look great! Never heard of them, thanks
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on January 25, 2021, 12:53:13 PM
If you have the little torx bits, a small vice grips help to get in to tight spots.

I do not know if they emissions test motorcycles where you live. If not, then you just get the bike running right and be done with it. A sensor setup can be bought, I won't spend that much.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 25, 2021, 01:55:09 PM
I do not know if they emissions test motorcycles where you live.

...they don't even do non-emissions tests
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 30, 2021, 11:45:12 AM
Small update to this:

I soaked the TPS in isopropyl for a few days, I figured if excess fuel could trickle down and gunk it up then there's no need to drill it.

When I put it back on I managed to get it set to .400mv, and when back probed it still went up to a 4.8 peak.

Maybe that'll help, maybe not. I'm waiting on the new plug caps to arrive, so I'll give it a spin next week and see.

Cheers
Title: Re: Few questions about a cali 1100i?
Post by: Tkelly on January 30, 2021, 04:21:19 PM
On my 97 I would replace the tps like a set of points and no further problems.Buy a new one and set it right.I have one if you can’t get one locally.Send me your address if you want it.
Title: Re: Few questions about a cali 1100i?
Post by: John A on January 30, 2021, 08:26:36 PM
Small update to this:

I soaked the TPS in isopropyl for a few days, I figured if excess fuel could trickle down and gunk it up then there's no need to drill it.

When I put it back on I managed to get it set to .400mv, and when back probed it still went up to a 4.8 peak.

Maybe that'll help, maybe not. I'm waiting on the new plug caps to arrive, so I'll give it a spin next week and see.

Cheers



That’s right in the ballpark!
Title: Re: Few questions about a cali 1100i?
Post by: Tom on January 30, 2021, 08:41:58 PM
Degrease the bike.
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 31, 2021, 02:11:49 AM
Degrease the bike.

how do you mean ? It's not very greasy. Is this about the injector manifold?
Title: Re: Few questions about a cali 1100i?
Post by: lad on January 31, 2021, 02:13:09 AM
On my 97 I would replace the tps like a set of points and no further problems.Buy a new one and set it right.I have one if you can’t get one locally.Send me your address if you want it.

I might do that if this doesn't yield any results, but there's no point replacing it if there's no need either. Thanks for the offer, I can pick up one easy enough on eBay, as I might revert to the PF09 when next I do replace it.
Title: Re: Few questions about a cali 1100i?
Post by: lad on March 06, 2021, 03:39:13 AM
Update, got a fuel filter, a Mahle, managed to replace it and that condensation pipe that was burst while I was at it, VERY tight in there now, the pipe wall was a little thicker than the stock.

I'm going to see if this makes a difference, next port-of-call is to clean the sensors, and failing that, the TPS


(https://i.ibb.co/gSngsf1/Screen-Shot-2021-03-06-at-09-32-54.png) (https://ibb.co/gSngsf1)



(https://i.ibb.co/mJQhrv7/Screen-Shot-2021-03-06-at-09-32-43.png) (https://ibb.co/mJQhrv7)
Title: Re: Few questions about a cali 1100i?
Post by: lad on March 11, 2021, 10:26:31 AM
eh....

Have i been duped? Why is the PF09 about 12 times bigger than the PFC3?


(https://i.ibb.co/D85YK2G/Screen-Shot-2021-03-11-at-16-22-38.png) (https://ibb.co/D85YK2G)


That's apparently the one for my frame number, but evidently they're not interchangeable? The thick plottens.

Pain in the ass. Guess i'm drilling and hoping
Title: Re: Few questions about a cali 1100i?
Post by: Tom on March 11, 2021, 02:40:04 PM
Older model.
Title: Re: Few questions about a cali 1100i?
Post by: Tkelly on March 11, 2021, 02:53:12 PM
The one in the photo looks nothing like the ones I got from Harley,made by Magni Marelli.My bike was a 97California.I will send it to you when I get home in April if you pay shipping.
Title: Re: Few questions about a cali 1100i?
Post by: lad on March 11, 2021, 03:34:39 PM
The one in the photo looks nothing like the ones I got from Harley,made by Magni Marelli.My bike was a 97California.I will send it to you when I get home in April if you pay shipping.

happy to pay, is it the pf3c one? It's just confusing, the injector housing must be huge on the older models? even though technically mine is an older model, or someone just stuck that frame number badge onto it, or the parts list manual is for an entirely different bike...
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on March 11, 2021, 08:29:48 PM
I'm not sure which thread to post this to. Per MG Cycle the PF3c fit's all FI models of the California series '98-'05. Here is a link to the page:
https://www.mgcycle.com/index.php?main_page=product_info&cPath=30&products_id=5333

I'm thinking the "correct" 9 with the direction the wires come out may have been updated to a 3 for the wires. Without being an electrical engineer and the test equipment to verify, I'm guessing the 9 and 3 have the same voltage ramp. HD has a TPS that fits But... from what I have read the voltage ramp is different. They are close enough to work, but IIRR they give a touch more fuel in the high end.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on March 11, 2021, 09:00:59 PM
So you wanna know about tuning up the bike, here is what I go with:
https://archive.guzzitech.com/EVTuneup-Jeff_B.html

Another version with pictures:
https://bradthebikeboy.blogspot.com/2012/10/throttle-position-sensor-setting_21.html

Adjusting a TPS. I have read there are two ways. One is to mess with the idle screw on the LH TB and adjust the TPS to 150MV with the screw fully backed out. The other just says to adjust the idle screw to get 500-525MV.

If it were me and I'm changing the TPS. I would install the new TPS, Per The Instructions, back the idle screw out and adjust the TPS to get 150MV. Then I would adjust the idle screw to get the 500-525MV. Then follow the instructions to balance the TB's.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: flower_king001 on March 12, 2021, 04:38:27 AM
I'm not sure which thread to post this to. Per MG Cycle the PF3c fit's all FI models of the California series '98-'05. Here is a link to the page:
https://www.mgcycle.com/index.php?main_page=product_info&cPath=30&products_id=5333

I'm thinking the "correct" 9 with the direction the wires come out may have been updated to a 3 for the wires. Without being an electrical engineer and the test equipment to verify, I'm guessing the 9 and 3 have the same voltage ramp. HD has a TPS that fits But... from what I have read the voltage ramp is different. They are close enough to work, but IIRR they give a touch more fuel in the high end.

Tom

Tom,

 You are correct that the unit MG Cycle is selling fits a 1998 - 2005 Cali models but the bike in question here is not a 1998 - 2005 but an older bike that uses a different TPS
Title: Re: Few questions about a cali 1100i?
Post by: JoeB on March 12, 2021, 06:09:06 AM
Adjusting a TPS. I have read there are two ways. One is to mess with the isle screw on the LH TB and adjust the TPS to 150MV with the screw fully backed out. The other just says to adjust the idle screw to get 500-525MV.

If it were me and I'm changing the TPS. I would install the new TPS, Per The Instructions, back the idle screw out and adjust the TPS to get 150MV. Then I would adjust the idle screw to get the 500-525MV. Then follow the instructions to balance the TB's.
That 500 mv setting was for the smaller 1.5 ecu bikes.
For the larger P8 computer, at least in 1998, it was recommended to set at 378 +-15 mv after setting 150mv baseline.
Have seen several different ways to set up over the years. Most seemed to work well.
That fellow on guzzitech also did a write up on the harley tps for those interested: https://archive.guzzitech.com/HD-TPS-Jeff_B.html
I used the harley tps once on my 98ev. Noticed no perceivable difference riding. However I'm not a racer just a sedate tourer.
Prices on the Pf3c came down and went back to it.

Title: Re: Few questions about a cali 1100i?
Post by: Tom H on March 12, 2021, 10:32:35 AM
JoeB,

The voltage was something I was a bit confused about between the P8 and 15M. Thanks for clearing that up for me.

I am still wondering what the difference between the 9 and 3 TPS is other then the wire location? Also why you have to run a 9 with a P8?

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on March 12, 2021, 01:18:24 PM

I am still wondering what the difference between the 9 and 3 TPS is other then the wire location? Also why you have to run a 9 with a P8?

Tom

I'm running an 8 with a 3... :shocked:
Title: Re: Few questions about a cali 1100i?
Post by: flower_king001 on March 12, 2021, 05:05:11 PM
Good luck....I'm out of trying to help with this!
Title: Re: Few questions about a cali 1100i?
Post by: Tom H on March 12, 2021, 07:24:53 PM
I found the difference in the other thread.

Tom
Title: Re: Few questions about a cali 1100i?
Post by: lad on March 13, 2021, 02:49:48 PM
i’ll keep this going on a different thread as this was a multi-question, people of the future, here is the link

https://wildguzzi.com/forum/index.php?topic=109470.0



thanks for the help flower king