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General Category => General Discussion => Topic started by: Mr.Bill on August 07, 2018, 10:38:06 PM

Title: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 07, 2018, 10:38:06 PM
Just bought a new Carbon Dark and have a question, is it possible to fit  the tach and speedo from a Special/Milano to the Carbon Dark (wiring harness the same, bracket mounting, etc.)?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: egschade on August 08, 2018, 08:41:22 AM
My 2017 Stone is also speedo only. Read somewhere that our models are not wired for a tach so it would NOT be a plug and play. Hope that's wrong as I like the more balanced look of the two instruments. That said, after a few months I (mostly) stopped missing the tach.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Diploman on August 08, 2018, 08:48:13 AM
On request, Speedhut will seal the bezel for motorcycle use:

https://www.speedhut.com/gauge/G338-TACH-01/1/Speedhut-Tachometer-8K-RPM
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: twowheeladdict on August 08, 2018, 11:27:21 AM
Just bought a new Carbon Dark and have a question, is it possible to fit  the tach and speedo from a Special/Milano to the Carbon Dark (wiring harness the same, bracket mounting, etc.)?

I also have a Carbon Dark.  0009 / 1921.

We know that the ECU knows what the RPMs are because it bases the gear indicator on RPM versus Speed.  Why they couldn't provide the RPMs as one of the options on the digital odometer part of the speedo is baffling. 

I have thought about getting the bluetooth interface and synching to a smart phone with the GUZZI app installed to be able to monitor RPMs and other factors while riding and analyze when I get home. 
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 08, 2018, 01:50:37 PM
My 2017 Stone is also speedo only. Read somewhere that our models are not wired for a tach so it would NOT be a plug and play. Hope that's wrong as I like the more balanced look of the two instruments. That said, after a few months I (mostly) stopped missing the tach.

I had the dealer check the part number on the wiring harnesses on the Special, Milano and the Carbon Dark.  Seems the part number should be the same for the Special and Milano, both have tachs, the part numbers are different!  I suppose the only way to find out for sure is to look at the harnesses side by side, can MG give us an answer?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: PeteS on August 08, 2018, 02:08:22 PM
Aftermarket tachs get their signal from the coil primary. It just counts pulses. No special wiring needed.

Pete
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 08, 2018, 02:08:56 PM
I also have a Carbon Dark.  0009 / 1921.

We know that the ECU knows what the RPMs are because it bases the gear indicator on RPM versus Speed.  Why they couldn't provide the RPMs as one of the options on the digital odometer part of the speedo is baffling. 

I have thought about getting the bluetooth interface and synching to a smart phone with the GUZZI app installed to be able to monitor RPMs and other factors while riding and analyze when I get home.

I installed the MG-MP on my Carbon Dark and it seems to work as advertised.  Still it seems silly to use an iPhone to get a rev count.  Got an estimate from the dealer to install a tach, $2000 (new harness, brackets etc.)!!!  I think a tachometer on a bike should be standard for a number of reasons.  Will probably bite the bullet and get one installed from the dealer.  Want genuine MG, no third party.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: PeteS on August 08, 2018, 02:29:00 PM
Guzzi tachs get their signal from the same source as aftermarket. You need three wires, battery, ground, and coil signal. $2k for a tach install?

Pete
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 08, 2018, 03:22:08 PM
Guzzi tachs get their signal from the same source as aftermarket. You need three wires, battery, ground, and coil signal. $2k for a tach install?

Pete

If the current harness has these wires I would not have to replace the harness and save about 1k, if not maybe the dealer could add them.  The dealer is currently checking with MG to determine what is necessary.  Still the parts add up to about $800 (without the harness and labor), Guzzi stuff is not cheap.

0 1 0 0 2D000209 PI CABLE HARNESS $513.70??
0 1 0 0 2D000294 PI D105 DASHBOARD WITH RPM SCALE $713.00
0 1 0 0 2B003631 PI DOUBLE DASHBOARD UPPER COVER $10.50
0 2 0 0 AP8152117 PI HEX SOCRET SCREW M6X25* $5.00
0 2 0 0 2B003851 PI BUSH $5.00
0 1 0 0 2B003586 PI PLATE SUPPORT INSTRUMENT $24.80
0 6 0 0 2B003367 PI GROMMET $18.60
0 6 0 0 013763 PI Washer for plate holder (4,2x1 $12.00
0 6 0 0 270793 PI Self tapping screw (D3,85x16) $12.00
0 1 0 0 2B003711 PI DOUBLE DASHBOARD LOWER COVER $5.50
0 4 0 0 CM178609 PI THREAD FORMING SCREW $10.00
1 0 0 0 MISC0 LABOR $550.00??
Subtotal $1,880.10
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: twowheeladdict on August 08, 2018, 05:52:25 PM
If the current harness has these wires I would not have to replace the harness and save about 1k, if not maybe the dealer could add them.  The dealer is currently checking with MG to determine what is necessary.  Still the parts add up to about $800 (without the harness and labor), Guzzi stuff is not cheap.

0 1 0 0 2D000209 PI CABLE HARNESS $513.70??
0 1 0 0 2D000294 PI D105 DASHBOARD WITH RPM SCALE $713.00
0 1 0 0 2B003631 PI DOUBLE DASHBOARD UPPER COVER $10.50
0 2 0 0 AP8152117 PI HEX SOCRET SCREW M6X25* $5.00
0 2 0 0 2B003851 PI BUSH $5.00
0 1 0 0 2B003586 PI PLATE SUPPORT INSTRUMENT $24.80
0 6 0 0 2B003367 PI GROMMET $18.60
0 6 0 0 013763 PI Washer for plate holder (4,2x1 $12.00
0 6 0 0 270793 PI Self tapping screw (D3,85x16) $12.00
0 1 0 0 2B003711 PI DOUBLE DASHBOARD LOWER COVER $5.50
0 4 0 0 CM178609 PI THREAD FORMING SCREW $10.00
1 0 0 0 MISC0 LABOR $550.00??
Subtotal $1,880.10

Still cheaper than buying a special and blacking it out. 
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: PeteS on August 09, 2018, 06:28:50 AM
Well, if you insist on a factory look then you will have to pay the freight. Are Guzzi instruments actually better than aftermarket now. The ones on my EV were both junk and both failed. I would not have considered using them again. I just made a new dash to accomodate the larger tach and was done with it. 10 bucks worth of aluminum plate plus the cost of the tach and it worked better than the Veglia ever did.

(http://members.localnet.com/~serrinop/tachfront.jpg)

Pete
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: slopokes on August 09, 2018, 06:00:14 PM
Tachometers for two cyclinder engine on flea-bay starting at $9.00=free shipping 🛵
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: egschade on August 10, 2018, 01:09:30 AM
Tachometers for two cyclinder engine on flea-bay starting at $9.00=free shipping 🛵

You mean like this? https://www.ebay.com/itm/Universal-Motorcycle-LED-Backlight-Tachometer-Speedometer-Tacho-Gauge-13000-RPM-/362276112849?_trksid=p2349526.m4383.l4275.c10#viTabs_0 (https://www.ebay.com/itm/Universal-Motorcycle-LED-Backlight-Tachometer-Speedometer-Tacho-Gauge-13000-RPM-/362276112849?_trksid=p2349526.m4383.l4275.c10#viTabs_0)

Certainly cheap alternative if it doesn't break in a month...

(https://thumb.ibb.co/cZbE39/s_l1600.jpg) (https://ibb.co/cZbE39)

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Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kev m on August 10, 2018, 03:51:49 AM
Fwiw, I had an AutoMeter on my Jackal for years no problems. Only it was easy on the Jackal as a dedicated ign pulse wire was left untapped in the instrument bezel.

Unless such a wire is in the V7 Stone harness you'd have to run your own from the primary side of the ignition coil.

Also you might have to fabricate a mount.

I can't for the life of me figure out why the III wouldn't use the exact same harness on all models though. I mean really the difference between a Stone and Special electrically is like, the Tach, that's it, right?

I can't imagine what the factory saved leaving the Tach off?!? I wonder if it was just more of a marketing decision to further differentiate between Stone and Special to justify the price difference?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: egschade on August 10, 2018, 06:20:24 AM
Fwiw, I had an AutoMeter on my Jackal for years no problems. Only it was easy on the Jackal as a dedicated ign pulse wire was left untapped in the instrument bezel.

Unless such a wire is in the V7 Stone harness you'd have to run your own from the primary side of the ignition coil.

Also you might have to fabricate a mount.

I can't for the life of me figure out why the III wouldn't use the exact same harness on all models though. I mean really the difference between a Stone and Special electrically is like, the Tach, that's it, right?

I can't imagine what the factory saved leaving the Tach off?!? I wonder if it was just more of a marketing decision to further differentiate between Stone and Special to justify the price difference?

Looking at the III Stone wiring manual I don't see a Tach lead anywhere. The ECU has several 'unused' terminals as does the headlight block so I'll need to pull the Special diagram to see what's what. Wouldn't surprise me to see wires there but not identified on the paper.

As to why they left it off the 'basic' V7 models I think it's both model differentiation AND cost savings. Even at Guzzi's lower volumes, saving a fist-full of Euros on what may be their highest volume model adds up. What does confuse me is why the wiring harness is different. What cost savings could there really be by leaving the tach connector off, especially if you consider the added cost of having to manufacture and stock two different parts for essentially the same job.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 13, 2018, 03:56:39 PM
Looking at the III Stone wiring manual I don't see a Tach lead anywhere. The ECU has several 'unused' terminals as does the headlight block so I'll need to pull the Special diagram to see what's what. Wouldn't surprise me to see wires there but not identified on the paper.

As to why they left it off the 'basic' V7 models I think it's both model differentiation AND cost savings. Even at Guzzi's lower volumes, saving a fist-full of Euros on what may be their highest volume model adds up. What does confuse me is why the wiring harness is different. What cost savings could there really be by leaving the tach connector off, especially if you consider the added cost of having to manufacture and stock two different parts for essentially the same job.

egschade,
Just ordered all the pieces (tachometer, brackets, hosing, etc.) to fit an QEM tachometer on my Carbon Dark and trying to figure out how to connect it.  One issue I am researching is to where to get the wiring connector for the tachometer. 

Any help would be appreciated,
Bill
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: egschade on August 14, 2018, 06:19:19 PM
egschade,
Just ordered all the pieces (tachometer, brackets, hosing, etc.) to fit an QEM tachometer on my Carbon Dark and trying to figure out how to connect it.  One issue I am researching is to where to get the wiring connector for the tachometer. 

Any help would be appreciated,
Bill

Bill - PM me your actual email address and I'll send you the .pdf wiring diagrams for the V7 III Special and Stone. It sure looks like the tach hooks into the can-bus somehow but it's not clear how that's done. Perhaps the tach is smart enough to pull the RPM data off the buss and all you have to to is tap into it (and the lighting leads from the speedo)?

(https://thumb.ibb.co/cMu4fp/mk_3_tach_wiring.jpg) (https://ibb.co/cMu4fp)

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Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mr.Bill on August 26, 2018, 10:30:21 PM
Bill - PM me your actual email address and I'll send you the .pdf wiring diagrams for the V7 III Special and Stone. It sure looks like the tach hooks into the can-bus somehow but it's not clear how that's done. Perhaps the tach is smart enough to pull the RPM data off the buss and all you have to to is tap into it (and the lighting leads from the speedo)?

(https://thumb.ibb.co/cMu4fp/mk_3_tach_wiring.jpg) (https://ibb.co/cMu4fp)

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egschade,
Sorry it took so long to get back to you.
Printed out your diagram, looks like all the wiring necessary comes from the speedometer.  Ordered but have not received the MG tachometer, need to check what type connector the tachometer requires.  With the tachometer connector wired in according to the diagram it looks like it should work!

Further researching the subject, I sent the following emails to MG and Valpolini (a MG dealer), both located in Mandello del Lario.

Hi,
Need some expertise!
Bought a Moto Guzzi V7 iii Carbon Dark and all the MG bits to add a tachometer (tachometer, housings and brackets).  I later learned that the wiring harness had no wiring for the tachometer.
Is it possible to purchase the physical connector and wiring instructions or a fabricated piggyback harness.
If not, can I replace the wiring harness from one of the V7's that has a tachometer?
Cannot find any knowledge on this issue in the US including the dealer, the forums, and the US MG distributer.
Love the bike and am willing to do whatever is necessary to get this tachometer installed.
Will be at Lake Como this spring and will try to visit MG and you guys.


Thanks for the info, Bill

 
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 06, 2020, 12:51:57 PM
To Mr. Bill
Did you finaly added a tacho or not?
If you did how did you do it.
I am looking for a sollutiion for my V7 III Limited.
I would like to hear from you.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 06, 2020, 04:14:30 PM
isn't the dash (Spedo & Tach etc) a one piece unit, thats what the schematic shows.
The speed Sensor goes into the ECU
The ECU communicates with the dash via CANbus, this will have lots of redundant information.
So it should be just a matter of getting a dash with the two gauges surely
I doubt though the early generation V7 would be the same as the iii
Find someone with a V7iii with the two gauges and try it
BTW you can tell the ECU is communicating with the dash because it does its full scale thing when you turn the key On.







Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: usedtobefast on January 06, 2020, 05:45:46 PM
There was a thread over on guzzitech and Todd researched it ... was doable but stupid expensive.  The speedo and tach are separate units, with different part numbers ... so you can order the tach and all the housing bits and pieces and everything to connect it. 

Sorry I don't remember the exact dollar amount, but it is in the "who would every pay that" level.  :grin:
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: TimmyTheHog on January 06, 2020, 06:17:45 PM
There was a thread over on guzzitech and Todd researched it ... was doable but stupid expensive.  The speedo and tach are separate units, with different part numbers ... so you can order the tach and all the housing bits and pieces and everything to connect it. 

Sorry I don't remember the exact dollar amount, but it is in the "who would every pay that" level.  :grin:

Found the thread and it seems to be well over 800 US "Todd's price"

In another word, you are almost better off buying a special which already has a tach build in from the factory if that is a must for you.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 06, 2020, 06:30:05 PM
Found the thread and it seems to be well over 800 US "Todd's price"

In another word, you are almost better off buying a special which already has a tach build in from the factory if that is a must for you.
May be on eBay of a parts bike?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: TimmyTheHog on January 06, 2020, 06:55:29 PM
May be on eBay of a parts bike?

perhaps, but I have not explore that option my self.

Was going to copy & paste Todd's work but decided against it as it is not my work nor I had tried so I do not know if it works also I do not want to be held responsible for anything that goes wrong.

but it is on his private forum if you really wish to look at it.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 06, 2020, 07:46:27 PM
Found the thread and it seems to be well over 800 US "Todd's price"

In another word, you are almost better off buying a special which already has a tach build in from the factory if that is a must for you.
I have the V7iii Special, I went and had a look this evening, it took me less than 5 minutes to remove the dash and unplug it, (3mm Allen & Torx screwdriver)
The speedo and tack are joined together but I doubt this is for anything more than convenience each one has its own connector.
The speedo has about 20 wires because it has the idiot lights etc, the Tach seems to have the same multiple pin plug but. only 5 wires installed.
Update: I suspect these wires are +12V, -12V, a dial lamp, CAN Hi & CAN Lo, I looked on the Speedhut site you can buy a configurable CANbus Tach for less than $100, The only problem I see going that way (Speedhut gauges call for CAN (J1979) protocol after 2008) They list several countries that specify this but Itay is not one of them so you would need to do some checking. The Speedhut gauges show a different CANbus connector, I think its the same one Guzzidiag use so it may be possible to connect it to the diagnostic port.
If you go the Guzzi route it looks as though you would need a new sub loom with the extra multi pin plug and a tach of course.
So obviously to install an OEM tach you need this 5 wire loom, I don't know if it would be in place on the non tach bikes. I don't know where this loom goes to, It disappears down the same tubing as the main loom. If there is anyone in the Vancouver area with a single gauge V7iii or late model V9 send me a PM with phone No and we can do a better comparison, when the weather smartens up of course.
___________
Sorry I can't post pictures from my phone onto my Mac but if anyone wants them and is willing to post them here send me a PM with your text info.
___________
I suspect the loom I see probably goes to another assembly where it branches out to the various sensors, perhaps near the ECU
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 07, 2020, 05:26:56 AM
When you see the lay-out drawn by Mt. Bill you see the five wires where Killy_Roy speaks about.
So an original tacho (parts here to find - rember not to add the speedo you already got)  can be added if you know where to find the connection.
These five wires are to be on the tacho (26 pin bus) pin 1 CAN - H signal -- pin 8 CAN - L signal -- Pin 19 Go to Fuse D  5A - Pin 21 goes to Fuse C 15 A.
On the electrical lat-out there is on every Guzzi V7 III drawn a connector called the Bluedash pre-connector.
Can someone wha has a bike to his disposal (mine is still in prep for first ride) make picture of this connector. (should have 8 poles or les if the diagnostic pin are speparated - as I see on some lay-outs)
If this connector is there the you have already four of the five pins and is only the 5A wire to be added to make up an tacho connector.
I think it is worth to investigate this path.
Hope to read some reactions on ythis idea.

Marcel - Belgium

https://www.parts-motoguzzi.com/moto-guzzi-motorcycles/750-MOTO-GUZZI-MOTORCYCLES/V7/2018/V7-III-Milano-750-E4-ABS/Lights--Instruments/Instruments/1350/33/7292/2829
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 07, 2020, 05:36:40 AM
Forgott to mention that pin 7 from the 26 pin tacho bus goes to the eart connecton (ground).
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 07, 2020, 08:19:44 AM
Bill - PM me your actual email address and I'll send you the .pdf wiring diagrams for the V7 III Special and Stone. It sure looks like the tach hooks into the can-bus somehow but it's not clear how that's done. Perhaps the tach is smart enough to pull the RPM data off the buss and all you have to to is tap into it (and the lighting leads from the speedo)?

(https://thumb.ibb.co/cMu4fp/mk_3_tach_wiring.jpg) (https://ibb.co/cMu4fp)

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Oops I didnt notice this, surely they include the plug and wires if you order the tach from Guzzi.
The wiring doesn't appear to double back to the speedo, it runs down the same jacket though, it must terminate at the other end out of sight perhaps there is another connector down near the ECU.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 07, 2020, 10:10:13 AM
At Kiwi_Roy : here you can order all teh pieces to assemble the tacho.
https://www.parts-motoguzzi.com/moto-guzzi-motorcycles/750-MOTO-GUZZI-MOTORCYCLES/V7/2018/V7-III-Milano-750-E4-ABS/Lights--Instruments/Instruments/1350/33/7292/2829
Mossing a connector 26 poles to make te lead connection neede to make function the tacho.
For 3 of them it is no problem I supose : A ground connection on pin 7 - a 5 A connection from Fuse D - A 15 A connection from fuse C
Remains the two Can wires H and Low (cable that has to made (it must be a twisted pair of wires shielde or not?)

I looked a bit further and found out all the V7 II 's have a Bluedash connector. This means a Bluethooth Dashbord connection and it is writen on the connectoe MGMP.
Here we take the two missing connections the H and L can wires. Have to investigate the pin lay-out of this connector as I found contradicting info about it.
Once this solved a Tacho can be mounted.

So far so good.

Marcel
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 07, 2020, 10:22:35 AM
Correction V7 III' s have a....

Look here to find more info : a good workshop
http://www.thisoldtractor.com/mg_manuals/workshop_manual_v7-iii-abs_en.pdf

Marcel - Belgiuùm
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 09, 2020, 08:50:25 AM
If you need to purchase a tacho connector for the Guzzi origal tacho then you need a SS10-26-2 Tyco/Amp connector.
Note this is a little bit different than the Speedo connector so they can not interchanged by accident.
It will else not be possible to obtain from Guzzi a spare connector for the original Guzzi Tacho.

remains still the question : making a short connection of the 5 wires direct into the harness or connecting to the blue dadh with a slight modification to double the 15 amp wire into a 15 and 5 amp-wire.

Marcel - Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 09, 2020, 12:17:35 PM
Marcel - Belgium
Thanks for the information, I dont need it myself as I have the Special with 2 clocks
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 09, 2020, 06:01:33 PM
The connector used by the tacho : 

Tyco/AMP SS10-26S-2 sold p.ex by Corsa rechnic. (do not forget the pins you need 5 at least but certainly not 26)
The conector is different from the connector for the speedo so ou can not interchange them.

I would make the connections with the speedo cable - somewhere under the fueltank I supose.
Remains still the option of the Blue dash CAN connector.

I do not think there will be communications problems between the computer and the Tacho and the Speedo.
Nor the Tacho nor the Speed are instructing the computer they are just read-outs, nothing more.
A CAN bus works with messages and both do only read them and do not send back messages.

Marcel - Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 09, 2020, 06:11:37 PM
To Kiwi_Roy : be happy you do not need to add a Tacho but I supose there hundreds of Guzzi riders struggling with this problem.
                    Let us hope we can solve it definitly.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 09, 2020, 07:27:12 PM
To Kiwi_Roy : be happy you do not need to add a Tacho but I supose there hundreds of Guzzi riders struggling with this problem.
                    Let us hope we can solve it definitly.
Mc Tes, you seem to be very knowledgable on this subject do you know anything about the CANbus protocol used by the Guzzi tachometers, we can get a third party instrument in Nth America that uses CANbus at quite reasonable cost (< US$100) and the connection would be easy. Gauges are available in several sizes and can be configured to look like a Guzzi gauge.
From the Speedhut site "Freedom CAN-BUS Tachometers will work with all CAN (J1979) protocol compatible ECUs"
It goes on to say J1979 is used in The America and England but doesn't mention Italy, I wonder if they have to comply for Nth America?
It seems to indicate that, I quote
Freedom CAN-bus gauges will only work on vehicles that are 2008 or newer and manufactured for the USA, Canada, or the UK.
 The full text is here https://www.speedhut.com/about-freedomgauges.html#canbus
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 10, 2020, 06:55:13 AM
Well what I could read I must conclude that we will have a clash beween the SAE J1939 and SAE J1979 systems.
Guzzi Uses a CSMA/CS system which is about the same idea as how internet works.
It manage  detection of message collisions but they solved this by using twisted wires to have full duplex system which avoids collisions.

Ofcourse this is important for tha aftermarket to know for what system is is intended.
In Europe it is Magneti Marelli the market leader and worldwide used.
In the Guzzi VIII there is a Magneti Marelli MIU G3 ECU based on the J1939 system.

Maybe the tacho of Speedhut has been made in compatibility with both systems???
I see the warning is very clear. I would not try to use this tacho with guzzi signals.
As I am not an electronic engineer I would do this to avoid greater damage.

Marcel - Belgium.

The safest is to buy the Guzzi kit with all the items to build up the tacho, buy a connector , make the cable and connect it into the harness as near as pissible to the speedometer.
But that is what I would do.


I
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 10, 2020, 07:02:37 AM

CORRECTION :

As I am not an electronic engineer I would NOT!!! do this to avoid greather dammage.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: twowheeladdict on January 11, 2020, 11:54:47 AM
To Kiwi_Roy : be happy you do not need to add a Tacho but I supose there hundreds of Guzzi riders struggling with this problem.
                    Let us hope we can solve it definitly.

Not sure what the problem is.  You can set the shift light to flash at a specific RPM and go solid at another higher RPM. 

I set mine to where I 'cruise' just below the light flashing, 'spirited' in the flashing zone, and make sure I shift when it gets solid. 
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 11, 2020, 12:21:24 PM
The idea is how to add a tacho to a Guzzi who has not got one from the start.
It has nothing to do with the function of the speedometer.

For me it has to have a tacho, but this just a point of view. Nothing more.
Even if it is just for esthetic reasons.

Marcel - Belgium.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 11, 2020, 12:38:51 PM
I would not try to mix aftermarket parts with the Guzzi for the tacho ofcourse.
The fysical cabling and the tachoharware is one part of the problem, it will just work well if this fits with the software cooked into the Guzzi tacho.(This is Guzzi firmware)
It is not just adding a classical tacho. If you look trough the workshop manual you will find a connector (3 wires) which can be doubled ( I do supose)  to make a extra contact for a classical Tacho based  on hardware principles.  It is there because Guzzi uses if as information source for his rpm system.
But  then you have  an esthetic differnce. Speedo and tacho are different.
This Guzzi Tacho is software driven and that belongs only to Guzzi. I would not take the risk using something else.

Hope I can one day, hope soon, can post a picture of my Limited version with a original Guzzi Tacho.
Have to be patient for the moment.

Marcel - Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 12, 2020, 10:24:49 PM
I would not try to mix aftermarket parts with the Guzzi for the tacho ofcourse.
The fysical cabling and the tachoharware is one part of the problem, it will just work well if this fits with the software cooked into the Guzzi tacho.(This is Guzzi firmware)
It is not just adding a classical tacho. If you look trough the workshop manual you will find a connector (3 wires) which can be doubled ( I do supose)  to make a extra contact for a classical Tacho based  on hardware principles.  It is there because Guzzi uses if as information source for his rpm system.
But  then you have  an esthetic differnce. Speedo and tacho are different.
This Guzzi Tacho is software driven and that belongs only to Guzzi. I would not take the risk using something else.
Hope I can one day, hope soon, can post a picture of my Limited version with a original Guzzi Tacho.
Have to be patient for the moment.
Marcel - Belgium
Marcel,
           I hear you on mixing aftermarket parts but if we didn't we wouldn't be typical Guzzi owners would we, that's the whole idea of having a common communication bus.
Anyway I sent off a note to Speedhut help desk giving the information you sent just to see what they will say.
I asked if the two systems were compatible.
I will post it here if they reply.
Roy
Update Added Speedhut Site - You have to design your own gauge, look, colour, font, logo, graphic etc, they even put the Guzzi logo on it for you
https://www.speedhut.com
Click on each field then "Apply" to filter the options  Gauges, Individual Gauges "apply", Tachometer "apply"................... ................... .
https://www.speedhut.com/gauges/Tachometers/?catid=f232%7Cf9 Eventually you get down to just one gauge left
https://www.speedhut.com/gauges/Tachometers/3-3-8-inch/CAN-Bus-(OBDII)/8K/?catid=f232%7Cf9%7Cf254%7Cf310%7Cf169%7Cf221
Then the fun starts and you have to pick Colour, Font, Tick style, Graphic etc
One thing Don't go with a reset button through the glass, trust me on that.
Yes they give the wiring, they use an OBDII plug, perhaps thats the difference right there beween the SAE J1939 and SAE J1979 systems.
Back in 2010 they had an Expo to try and merge the systems as far as scan tools go, perhaps that only applies to the ECU not the dumb gauges.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 13, 2020, 01:49:23 AM
Kiwi_Roy,
Good idea.
Hope they give a wiring sheme on how to connect there Tacho and give more info on the compatibility and explain wht it would work.

Marcel - Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on January 14, 2020, 05:22:33 AM
Speedhut got straight back, their CAN-Bus tach is NOT COMPATIBLE but they did include a Standard alternative
Hello Roy,
Our J1979 is not compatible.  option from us would be our standard tachometer that compatible with all types of ignition (Single Coil, Coil Pack, Coil On
Plug, or Tach output from ECU/Aftermarket Ignition)
https://www.speedhut.com/gauges/Tachometers/Standard-Tachometer/?catid=f232|f9|f217

--------------------------------
So there you go, I'm not sure why their filter didn't work properly, try this one https://www.speedhut.com/gauges/Tachometers/Standard-Tachometer/?catid=f232%7Cf9%7Cf217
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 14, 2020, 05:49:42 AM
Roy, thanks so this is cleared.

Guzzi picks uo from the classical connector (3 wires ) (in the SERVICE STATION MANUAL 2Q000297 the pic on table f3) for own use and redistribute this info via the MIU G3 on he bus.
I supose these 3 wires can be doubled and used for a classical tacho if one is happy with that.

The option for the guzzi tachi is one that goes over the 5 wires and a interconnection in the harness or to be tested via the Bluedadh connector.

I'll see with the dealer what is best to do. keep everybod informed.

Marcel - Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 29, 2020, 08:16:09 AM
It is done. I have a V7 III Limted with a Tacho orinally Guzzi Tacho.

(https://i.ibb.co/9mXYHYb/IMG-1195.jpg) (https://ibb.co/9mXYHYb)
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kev m on January 29, 2020, 09:48:07 AM
It is done. I have a V7 III Limted with a Tacho orinally Guzzi Tacho.

(https://i.ibb.co/9mXYHYb/IMG-1195.jpg) (https://ibb.co/9mXYHYb)


Awesome!

Would you be so kind to summarize the final details for future owners?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on January 29, 2020, 11:10:50 AM
Kev, I'll try to do it.

1. All data information on the Guzzi V7 III circulates via a twisted pair of wires. (This gives full duplex communication and a better shielding towards noise on the cwires)
2. The ECU of the Guzzi is a Magnetti Marelli MIU G3 (It uses the SAE J1939 protocol and is not compatible with the SAE J1979 protocol - So never mix these two systems - keep Guzzi the original tacho which uses the wright protocol)
3. The connection is not of teh classical type (3 wire system) although this 3 wire connector is present and used by Guzzi itself to feed the ECU.
4. The tacho is fed by a 5 wire cable (or a cable made up with 5 wires where the data cables(2 wires must be a twisted pair).
5. The parts to build the Guzzi tacho itself be ordered here :
     https://www.parts-motoguzzi.com/moto-guzzi-motorcycles/750-MOTO-GUZZI-MOTORCYCLES/V7/2018/V7-III-Milano-750-E4-ABS/Lights--Instruments/Instruments/1350/33/7292/2829
     Here do not order - the t° sensor
                               - instrument cluster MPH/H or KMS/H as you already have these.
6. To make your cable to connect the tacho you need 1 - the 5 wire cable
                                                                            1 - connector Tyco/AMP SS10-26s-2 as sold by Corsa Technics (a US company!)
                                                                            5 - pins at least to insert into the connector (a few more will do no harm)
                                                                            1 tool to insert and retrieve these pins
7 The connection has to be made following the sheme a found in this topic. (supplied by Bill)

With this info my dealer made me the tacho and it works.
Take this thru with your dealer and let him  do it. Your dealer is the only who can take the warranty of doing this or you can always do it at own risk. Yout own choise.
So for me my dealer did it. I only supplied him with  basic informations and it seemed to be enough for him.
Guzzi does not sell the cable and the connector!  nor they supply a complete set to add a tacho. I do not know why but it is just like that.
An alternatif is to buy at Guzzi a complete cable harness for a V7 III who is equiped with a Tacho (p.ex the MIlano - the Special ..)and use the cable and the connector for your  project and do connect these 5 wires the same way it is done at the Guzzi plant.

Sheap is ofcourse something else.
Marcel Belgium
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: guzzi771 on January 30, 2020, 05:34:35 PM
I added a multimedia platform to my V7III carbon shine now I have a tach and much more
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Bulldog9 on January 30, 2020, 06:15:30 PM
Not ideal, but if you really want/need a tach, this may be an option. There are more expensive options that use GPS for speedo. Unsure if this is compatible with the iii series, though I know a few folks who have put them on with good results.

https://www.amazon.com/dp/B00DTE94SI/?coliid=I13U0ZM3YBEEEA&colid=2WX86SK6HNKEM&psc=1&ref_=lv_ov_lig_dp_it

https://www.amazon.com/dp/B07HF8N8FF/ref=psdc_404770011_t3_B00DTE94SI
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Bert Remington on June 27, 2020, 05:08:11 PM
Having some extra time on my hands as I wait for my V7 III to be delivered ( :laugh: I'm retired) I pulled this CANbus tachometer thread a bit further.

SAE J1939 defines layers 1 - 5 (of seven) of the OSI protocol.  These five layers are essentially the physical (little "p" because big "P" is the name of Layer 1) associated with moving electrons around and when-where-how messages are sent and received.

SAE J1979 defines the message content meanings (OBD-II Parameter IDs, I believe this is Layer 7 Application).

So I believe what is needed is a connector matching the MGs BlueDash on one end and an OBD-II connector on the other end.  Then the SpeedHut GF-HRNS-06 OBD Harness would connect their CANbus tachometer to the OBD-II connector.  Depending on the MG-side BlueDash connector type and pinout this wiring could be simplified.

Amazon offers J1939 to OBD-II adapters.  They are just mapping one connector's pins to another connector's pins -- no electronics involved.  Amazon also offers OBD-II to Bluetooth adapters for Android, iPhone and Windows.  An app from several sources is also required.  So for less than $50 I can verify if the J1979 engine speed PID is transmitted out the OBD-II connector and therefore acceptable to the SpeedHut tachometer.

I have a Lonelec GUZZIDIAG kit for the Norge.  I think with the proper BlueDash to OBD-II cable I can use it on my Windows laptop and display the J1979 PIDs.

Would someone kindly post a picture of the V7 III BlueDash connector so I can start finding a match.  I think it looks like the righthand connector of the MMP adapter but would like to make sure.  Thanks.

(https://i.ibb.co/wNkzd0C/Blue-Dash-Adapter.jpg) (https://ibb.co/wNkzd0C)
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 28, 2020, 12:36:25 AM
hello,
I do not have a picture of the Blue Dash connector but it is located under the seat and and it is a white plactic connector.
A sson as I can get a pic of this connector I will come back on this.
My initial idea was to connect from this blue dash to the tacho connector. (an original MG tacho)
If you read throu this topic you will see how I would have done it.
Of course the way I finnaly did it is the most expensive but it works wonderwell.

Hope I can give you this picture.


Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on June 28, 2020, 01:11:10 AM
A standard Speedhut is the simple way to go Not Canbus, a tach taking pulses from one of the coils, you can easily configure it to look similar to the Guzzi speedo.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 28, 2020, 01:30:54 AM
There are always several solutions. Depends on what you like and want.
The solution you like is the best beside all the others.

McTes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Zoom Zoom on June 28, 2020, 12:36:41 PM
It's kind of a shame that Guzzi doesn't offer a tach kit as an accessory. I would think some would be willing to buy a plug and play kit for a V7 without a factory tach. They did that for the Cali models below the EV. It was pricey at 600 bucks USD as I recall.

Multi Media Platform doesn't count! Not if what you want is two nice gauges with a needle that sweeps across their faces.

John Henry
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Bert Remington on June 28, 2020, 01:06:37 PM
Mc Tes -- I did read through your excellent posts!  Multiple times!  I really appreciate the detailed information you provided and it was my jumping off point for my investigation.  Much thanks. :smiley:

I'm looking forward to your picture although it looks like an ordinary Molex connector.

SpeedHut makes quality gauges that are immensely tailorable.  If I'm correct about the J1939/J1979 CANbus relationship and MG's likely adherence to them, then the BlueDash interface imposes the fewest modifications to the MG wiring harness, always a warranty consideration.  So SpeedHut via CANbus looks best to me.

Having said that, it looks like battery-regulator-connections has taken precedence to a possible tachometer.  Those three plus replacing the fire-danger catalytic mufflers take precedence.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 12:30:37 AM
I saw the bluedashconnector as a white plastic connector (I think it was a 9 pins one - MK9) but I am not sure, it its just from memmory.
But your local dealer, if he has bikes in his showroom (it is present on all models of V7 III) he can show you the connector. It is hidden behind the side pannel. Removing the saddle is easy, the side panel too.
I think this wil be the quickest way to take a good picture from this connector.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 02:00:29 AM
Hope the images will be visible.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 02:02:14 AM

(https://i.ibb.co/FD4VZPb/IMG-1247.jpg) (https://ibb.co/FD4VZPb) (https://i.ibb.co/hFk07y3/IMG-1248.jpg) (https://ibb.co/hFk07y3) (https://i.ibb.co/d0NJsT5/IMG-1252.jpg) (https://ibb.co/d0NJsT5) (https://i.ibb.co/9Y6wTYm/IMG-1254.jpg) (https://ibb.co/9Y6wTYm) (https://i.ibb.co/7NBqk4k/IMG-1258.jpg) (https://ibb.co/7NBqk4k) (https://i.ibb.co/rb5cCSY/IMG-1259.jpg) (https://ibb.co/rb5cCSY) (https://i.ibb.co/wp5DcG4/IMG-1270.jpg) (https://ibb.co/wp5DcG4) spiritueel plaatjes (https://nl.imgbb.com/)
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 02:04:43 AM
The cable is marked MGMP (Moto Guzzi Multimedia Platform)
Its is gray. So you see how memmory can be bad.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 02:26:38 AM
As you can see on the second picture, it becomes clear this is the connector with a vergincounterconnec tor fitted to it.
You separate them with a small screwdriver.
If you see to the pictures of the multimedia kit you can see that at one end there is that counterconnector.
Hope it all becomes a little bit more clear.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 03:01:18 AM
There are real differnces between SAE j1939 and SAE J1979. I tought somewhere in this toppic Speedhut said that there tacho were not compatible with the J1939.
It is just the poitn of the RPM infomation that is not 100% standard between all constructors who uses the j1939 protocol.
After 2010, all those who uses teh J1979 protocol have the same RPM info and coding.

I think it will not work, that Guzzi has his own system for RPM communication on the CAN bus. It is in there Tacho the info is decoded correctly.
If Guzzi would had used the J1979 Protocol there would have been no problem.

I am very interested in the results of your rechearches. Let ud know.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Kiwi_Roy on June 29, 2020, 05:09:14 AM

I think it will not work, that Guzzi has his own system for RPM communication on the CAN bus. It is in there Tacho the info is decoded correctly.
If Guzzi would had used the J1979 Protocol there would have been no problem.
 
Mc Tes
I'm in complete agreement with you on this, Speedhut got right back to me and said it wouldn't work.
Getting one of Speedhut's pulse input tachometers to work is so easy, all you need is a wire from the ignition coil under the tank snd switched power, there will be enough to do configuring the gauge to match the look of the Guzzi speedo without worrying about
the bells and whistles of the different Canbus systems.

Did we ever rule out the option of purchasing the tach and loom from a wrecked bike? Do you think the tach information is available or would it require a different map for the ECU?

Roy

From page 2
Speedhut got straight back, their CAN-Bus tach is NOT COMPATIBLE but they did include a Standard alternative
Hello Roy,
Our J1979 is not compatible.  option from us would be our standard tachometer that compatible with all types of ignition (Single Coil, Coil Pack, Coil On
Plug, or Tach output from ECU/Aftermarket Ignition)
https://www.speedhut.com/gauges/Tachometers/Standard-Tachometer/?catid=f232|f9|f217
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on June 29, 2020, 05:39:26 AM
@KIwi_Roy :

for their ECU Guzzi does just the same to provide the info to the ECU.
Once more, it is a pitty that Guzzi did not provide a doubled connector so for those who wishes to add a tacho of their own taste.

Make this relection : if MG would have wanted to be open to the world, they would in the past 10 years used the J1979 protocol! They did not!

If you can buy a second hand tacho from a crashed bike (not only the tacho but also the frame for the tacho and the speedo) it is just a matter of soldering 5 wires and a litlle bit of mounting work.
That can be a good option.

Mc Tes

                             
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: pauldaytona on June 29, 2020, 06:01:45 AM
There won't be much crashed v7III tacho's for sale as there are few sold. And one of the things that first destroy are the instruments.
If you use a normal tacho with pulse pickup, don't connect to the coil, but tap in one of the injectors. The grey/red or grey/black wire.  You can buy the connectors in male and female for that so can make a Y adapter without disturbing the original loom.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: twowheeladdict on June 29, 2020, 06:23:44 AM
Reading through all these posts makes me even more OK with the adjustable shift light.  I set it to flash just above my comfortable cruising RPM, and go solid at the RPM I don't want to exceed before shifting.  The V7III really does let you know through the feel when it is in the zone.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Bert Remington on July 01, 2020, 11:49:34 PM
Mc Tes -- thank you for those pictures.  Yes I can see the two connector parts.

The BlueDash interface from the MG V7 III Stone schematic

(https://i.ibb.co/G02nXNL/CANbus-Connector.png) (https://imgbb.com/)

Connector 51
------------

1 -- Ignition Switch via 15A Fuse B [Ar=Org]
2 -- Ground [B=Blu]
3 -- X4 CAN High Line (SAE J1939 with J1979 PIDs)
4 -- X3 CAN Low Line (SAE J1939 with J1979 PIDs)
5 -- Diagnostic Signal (K0Line ISO 9141-2) [Bi/B=Wht/Blu]
6 -- n/u
7 -- n/u
8 -- n/u

Pin 5 is the same signal as Pin 3 of Connector 40 which is the diagnostic connector the Lonelec plugs into for the GuzziDiag interface.

(https://i.ibb.co/71TLbfq/Lonelec-Interface-to-Guzzi-Diag.jpg) (https://ibb.co/71TLbfq)

This raises the question: is the Lonelec converting the K-line signal to CANbus PIDs and sending them to GuzziDiag via the USB connector?  I'm thinking it is.  But I'm an optimist.  More research needed.

Returning to SpeedHut's CANbus tachometer, it just doesn't make sense for MG to use a unique J1979 engine speed PID for their CANbus tachometer and therefore SpeedHut's should work.

I haven't received my V7 III Stone yet but I kinda doubt I'll add a tachometer.  But if someone does want to put the CANbus SpeedHut tachometer on their V7 III, I will buy it from them if it doesn't work.  The MG tachometer has five wires: +12, Gnd, Can High, Can Low, and I don't know -- ??illumination. Make sure you get one without the shift light (ie, no pushbutton penetration) and is waterproofed (tell SpeedHut it is for a motorcycle).  So anyone up for this?
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Mc Tes on July 02, 2020, 12:54:52 AM
MG does not stick to the SAE J1979 protocol but to the earlier SAE J1939 and in this protocol is uses it own coding for the tacho info. So the int J1939 protocol MG uses is not fully standard.
Keep this in mnd.

Mc Tes
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: AZRider on July 05, 2020, 02:58:21 AM
When the first v7 iiis arrived at Hamlin and I got all drooling over the Carbon Dark, I immediately looked at the connectors on the back of the dashboards and was disappointed to see that they are not the same as the one on the dual-gauge  models.
I'm glad you guys solved the problem and documented it here for the community.

An important note for anyone considering the simpler option to use a tach that just takes a pulse directly from an ignition coil: You need a tach that can work with 1/2 spark per revolution, not the common 1 spark per.

Why?  Guzzi does NOT use a "wasted spark" ignition, meaning that it only Sparks on the ignition revolution of the four strokes of suck-squeeze-bang-blow. Harleys started way back in the early 1900s with a wasted spark near TDC between blow and suck because it was simpler to spark every revolution and it didn't hurt anything, and they never changed. SO, most aftermarket tachs are made for the Harleys, and they expect one pulse per RPM. Even most "adjustable" tachs that say they can be set for 2,4,6, or 8 cylinder engines presume that the 2 cylinder setting is a Harley and can only go as low as 1 pulse per RPM. Our Guzzis, only sparking every other revolution, will read half of true RPM on those.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: Bert Remington on August 26, 2020, 08:18:12 PM
As some of you may have observed, I've been doing a deep dive into MG's implementation of CANbus for MIU G3s and found an number of strengths and weaknesses, both of which I'm addressing and both of which solutions I will share because many V7 III riders are riding with their MI lights on and that's not proper operation.  And let's leave it there before I rant.

Back to the tachometer topic.  There were some who thought I couldn't make the excellent Speedhut CANbus tachometer work with a V7 III.  I'm calling you out.  My offer (to just the first US-only* member who accepts) is for you configure the Speedhut Freedom CAN-BUS tachometer to your preferences; send me those preferences (which I will confirm with you); I will purchase that tachometer configuration; I will assemble a connector (8-pin Bluedash) with CANBus-safe cable to the tachometer; I will post a picture of the tachometer working on my V7 III Stone; I will send you the tachometer with cable and connector; and you will repay me Speedhut's tachometer cost plus up to 30% for parts and shipping (I'll provide an invoice).  If the tachometer doesn't work for you, you pay nothing except return shipping, no questions asked.

If I can't post a picture of the tachometer working, you pay nothing and I eat crow.

GTM provides dual gauge mounting at https://gtmotocycles.com/collections/all-products/products/gt-motocycles-v7-iii-speedo-drop-bracket

* the US-only exception is Kiwi_Roy.  Even if he isn't the first to accept the offer I'll build one for him.
Title: Re: Add tachometer to new V7 III Carbon Dark
Post by: twowheeladdict on August 27, 2020, 06:38:06 AM
As some of you may have observed, I've been doing a deep dive into MG's implementation of CANbus for MIU G3s and found an number of strengths and weaknesses, both of which I'm addressing and both of which solutions I will share because many V7 III riders are riding with their MI lights on and that's not proper operation.  And let's leave it there before I rant.

Back to the tachometer topic.  There were some who thought I couldn't make the excellent Speedhut CANbus tachometer work with a V7 III.  I'm calling you out.  My offer (to just the first US-only* member who accepts) is for you configure the Speedhut Freedom CAN-BUS tachometer to your preferences; send me those preferences (which I will confirm with you); I will purchase that tachometer configuration; I will assemble a connector (8-pin Bluedash) with CANBus-safe cable to the tachometer; I will post a picture of the tachometer working on my V7 III Stone; I will send you the tachometer with cable and connector; and you will repay me Speedhut's tachometer cost plus up to 30% for parts and shipping (I'll provide an invoice).  If the tachometer doesn't work for you, you pay nothing except return shipping, no questions asked.

If I can't post a picture of the tachometer working, you pay nothing and I eat crow.

GTM provides dual gauge mounting at https://gtmotocycles.com/collections/all-products/products/gt-motocycles-v7-iii-speedo-drop-bracket

* the US-only exception is Kiwi_Roy.  Even if he isn't the first to accept the offer I'll build one for him.

In my mind, where MG missed it was not offering a digital readout of the tachometer on the speedo like they offer odometer, trip meters, average economy, instant economy, temperature, etc.  The information is available and could have easily been implemented.  I've test ridden many single gauge bikes with digital tach on the display.