Stuck Injectors?

[antmanbee]

Well I got my V11 Sport all back together but it wont start.

It cranks fine, fuel pump pressurizes, got spark but no fuel.

If I squirt a little fuel into the manifold balance fittings, it fires.

My diagnosis is stuck injectors, as the bike only has 5800 miles and has been sitting for a decade or more.

The tank looked clean but was completely dry.

 

My question is are there any tips for getting the injectors out? There are two flat head Allen head bolts that are extremely tight for each injector and I am afraid to put more torque on them.

Or any way to un-stick them without removing them?

 

Or is my diagnosis wrong?

[fotoguzzi]

Confirm the cam sensor is working before digging into the injectors.. I have hard time with both of them being bad at once.

Kill switch? Fuel tap open? Can you hear the pump?

[antmanbee]

If the cam sensor is non functional there will be no spark either. I have a spark.
I hear the pump, sounds normal.
When I disconnect the hose at the regulator pressurized fuel squirts out. Tap is open.
If the kill switch is on, then the pump doesn't prime or the starter spin.

[flangeman_70]

Have you got a Guzzidiag software and appropriate test lead?
You can do an injector test where you will hear them clicking, it is very distinctive.
You could also disconnect the plug leads, the plugs should be wet after 5 seconds of cranking.

[guzzisteve]

If I know the Sporti, it's an injection relay, make sure they(relays) are all working. Just cause the fuel pump runs doesn't mean they are all working.
Injectors are held in like the California model, 2 long screws on a block.
You can clean them yourself w/9V battery to open & close. I'v done this w/good results.

[LowRyter]

could be clog filter too. 

[not-fishing]

I pulled the injectors on my '03 V11 Lemans and sent them off to be cleaned.

I've gotten into the habit of cleaning injectors after 15 years or 200,000 miles and found it does make a difference.

Mark

[antmanbee]

I do have Guzzidiag and cables. I didn't know about the injector test. Good idea.
I had swapped relays before I initially posted, although it looks like the pump and injectors are on the same relay circuit.
It is those 2 long screws that are so tight that I am worried about f-ing them up.
I had seen a youtube post about a guy with a Ducati that tapped the end of the injectors with a hammer to un-stick them and it seemed to work.
i am a little worried about doing this as I might damage the pin/nozzle.

[Bisbee]

Sounds like an electronic problem. Even crudded up ones should work at some level. After letting my EV sit for years , I pulled them and sent to injectorrx.com in Houston. Did a fine, fast job. Made a big difference in idling and steady running. Hit those Allen bolts with penetrating oil and walk away for a day. Seat the Allen then give it a hard fast crack. Don’t go slow.  I greased them up on installation. I think you’re in a world of hurt if the bolts round out. No room in the EV to get at  those little stinkers.

[guzzisteve]

I've had to drill the head off those damn bolts. I go in from opposite side w/extension and have a tight fitting bit. You could also take assembly off and do it on the bench.
If you have GuzziDiag just look in the faults, something should show up.

[Rough Edge racing]

  You need to check fuel pump pressure before doing anything else

[antmanbee]

Fired first try,

After....

Hooked up Guzzidiag. As mentioned by flangeman, one of the actors is an injector test for L and R. I could hear them make a faint click.

I already had the inner rubber manifolds off so I had a good view of the injector tips. I tested the injectors a couple of dozen times until I had a nice puff of fuel mist from each.

At first nothing had come out.

I also thoroughly flushed the fuel line and bled it from the lowest point and then at the regulator until I had a steady stream.
I think this helped as I may have had some air pockets in the line even though the pump had been switched on many times.

Put it all back together and success!

I wont have a chance to take it out on the road till the weekend, but I will report back again.

Thanks for all the help.

[Chuck in Indiana]

Gotta love WG..  I see you are already a donor this year.  Education is expensive. The info here? Priceless..

[antmanbee]

Another important thing to keep in mind is to have a good follow up with the resolution.
Frequently as I search old threads I see many good suggestions but no resolutions are posted.
We need to see 'Solved' and how it was accomplished.

[bodine99]

Another important thing to keep in mind is to have a good follow up with the resolution.
Frequently as I search old threads I see many good suggestions but no resolutions are posted.
We need to see 'Solved' and how it was accomplished.

Yes here and on others. Glad you got it fixed. right arm opps ride on !!!!

[Chuck in Indiana]

Another important thing to keep in mind is to have a good follow up with the resolution.
Frequently as I search old threads I see many good suggestions but no resolutions are posted.
We need to see 'Solved' and how it was accomplished.

Absolutely.  I hate it when someone maybe with their first post says they are broken down in (name your desolate place) gets an answer (probably) and is never heard from again.