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Jackal issue, flooding, odd bike

Discussion in 'Chat & Tech Info' started by Dr. Evil, Mar 25, 2021.

  1. Dr. Evil

    Dr. Evil Just got it firing!

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    Hello all and thanks for reading my first post. I have an unfortunate collection of non running Guzzis that just wasnt complete without one more, apparently. Last weekend I purchased a 74 Eldorado with a 2000 Jackal drive train stuffed into it. It started, ran, I drove it up the driveway and onto the trailer. Now, in my garage (which may be cursed), I doesnt start and after a short time fuel starts pouring out of the right (up side when on side stand) intake. The left has not had this issue.

    What I have done to date:
    - Checked suction at both intakes, they are the same and indicate no valve issue in the right.
    - Removed right TB assembly, cranked engine and watched injector pulse fuel into the air. More of a cloud than a cone. This may indicate something.
    - Checked to make sure fuel was coming out of left injector with TB housing left on the bike. I felt the fuel pulses on crank with my finger at the nozzle.

    Since this is a conversion, it has a Power Commander 3 on it. I am unfamiliar with these things, so looks like familiarization is coming soon. Could this be causing my issue? Why all of the sudden?

    Next steps planned:
    - Check the Power Commander out, verify not causing my headache.
    - Flow the injectors to see if they are equal, and if they are right pattern and volume over time. I do not know what the V/T is, though, so it would be best guess. New injectors are about $150...I dont want to try throwing money at it until it works.
    - Verify spark, however it will cough initially before it starts to flood.

    I am new to the newer Guzzi so appreciate any help and direction. I have looked at the service manual on line, it was not much help.
     
  2. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    If you are only getting a mist from the injector I recommend sending both to RC Engineering to be cleaned. It is possible the RH injector isn't closing completely resulting in fuel escaping. https://www.rcfuelinjection.com/ Todd, the administrator of the forum is well versed in Power commander and once you get the injectors cleaned can help you with any issues of you still have any.
     
  3. Dr. Evil

    Dr. Evil Just got it firing!

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    ok, will do. I’m thinking after RC treatment that it may correct. Odd that it happened right after I got home. Bike in current iteration had 1000mi on it for a total of 19k and change in the engine.
     
  4. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    It is 20 years old. A piece of debris may be the culprit. That can occur at any time.
     
    Moto-Uno likes this.
  5. Dr. Evil

    Dr. Evil Just got it firing!

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    Any idea the size or part number for the O rings for the injectors? in the parts fische it is in a component cluster that is way expensive and includes stuff I dont need. I measured last night and then got to searching for alternatives at places like McMaster-Carr. Ideal, I believe, would be Viton, but Nitrile seems ot be the easily sourced material. Size appeared to be 8x15x3.5mm, but when I measured the inlet side of the injector it was 7.8mm and the Orings there seems ever so slightly smaller in ID at least. Maybe standard v metric? The square big rubbers on the injectors will be reused, seemed fine, dont need to be perfect.

    On removal, right side was wet as hell so really leaning toward debris. With that big ol filter in place, I am surprised. Definitely did not see a 30* cone spray when I ran it prior, just a cloud. We shall see, I ship them out tomorrow. Next is the brake leak issue...
     
  6. vagrant

    vagrant GT Reference

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    Is this the bike that got sprayed with engine degreaser?
     
  7. Dr. Evil

    Dr. Evil Just got it firing!

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    ??? I have no idea what you are referring to. Not from me, but was there as story of such that I am missing?
     
  8. vagrant

    vagrant GT Reference

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    On another forum I guess.
     
  9. john zibell

    john zibell Moderator Staff Member GT di Razza Pura

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    Ask RC if they can supply new o-rings.
     
  10. Dr. Evil

    Dr. Evil Just got it firing!

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    Emailed RC and they told me replacing O rings is standard for their service. That makes it easier. Now, just waiting and will report back with results.
     
    scottmastrocinque likes this.

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