Performer 405 A12 carb problem....

Discussion in 'Ask Our Repairmen' started by Full Steam Ahead, Nov 2, 2010.

  1. Full Steam Ahead New Member

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    This unit will run for 45 min to an hour and then suddenly stumble around and die relatively quickly and out of no where! If you happen to be standing nearby when it does this you can pull the choke and it will pick back up and run for the rest of the job with the choke closed. Otherwise if it dies you then have to pull the choke, to close it, and start it, and then just leave the choke closed to finish. This has been the pattern for 3 days now. WTF? This leads me to believe its starving for fuel, but... I replaced the fuel pump and filter when this first started, no difference. I'm getting 6 psi at the carb bowl at all times, even when this is happening. What could this be and why after running for so long does it just happen?:mad:
    Full Steam Ahead, Nov 2, 2010
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  2. spotman123 Active Member

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    Not sure if this is related to fuel problem but check your aircleaner, plugs and plug wires, I also had a bad ignition switch that caused the machine to die every so often. just little things to ck out. I am sure others will chime in spotman
    spotman123, Nov 2, 2010
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  3. Newman New Member

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    The ignition coil is a part that can weaken or fail as it heats up. The heat will expand the coil causing a weak point in the winding to open up. When it cools of, the windings contract and make a good connection again.
    Newman, Nov 2, 2010
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  4. Full Steam Ahead New Member

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    The only problem with that is that I'm getting spark the whole time, but for some reason losing fuel volume somewhere inside the carb.......I think!

    Thanks
    Full Steam Ahead, Nov 3, 2010
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  5. JAY Member

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    get some sea foam motor treatment and try it thru your fuel system. if the jets or something are fouled sea foam will clean it out. google " sea foam motor treatment " and see what you come up with. watch the video on the company site to see how easy to use. where im at it costs almost $10 for the pint.

    oh.....and i wouldnt leave it in the crank case like they show you. add it with about 1 hr run time before an oil change. then drain it all out. your done!

    :AddEmoticons04233:
    JAY, Nov 3, 2010
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  6. Ara Klujian Moderator & TMF Repair Expert

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    Ara Klujian, Nov 3, 2010
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  7. Full Steam Ahead New Member

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    Yep Ara, I sure did. I'm not sure how that would relate to the type of fuel issue I'm having now though. My guess is a plugged main jet in the carb. The carb is only 2 yrs old or so. What is the wire coming off of the carb and going to the + side of the coil? The anti-dieseling solenoid you were talking about earlier? I'm getting to the point where I'm going to have to drop it off at Interlink and let them deal with it!
    Full Steam Ahead, Nov 4, 2010
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  8. Ara Klujian Moderator & TMF Repair Expert

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    Yes that is the anti-dieseling solenoid.
    Like I said in those posts earlier. If that gov is not hooked up it will create problems in the future. It dumps more fuel under load. Without a gov you run at the same air/fuel all the time. Valves will heat up, detonation will occur etc... Maybe the throttle valve in the carb is getting stuck. Try spaying some carb cleaner down the throat and work the linkage back and forth. Make sure your gov is working and lubed 1 1/2 oz of mobil 1 synthetic. Your obviously dumping more fuel with the choke maybe the gov isnt working properly.
    Ara Klujian, Nov 4, 2010
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  9. Full Steam Ahead New Member

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    Update: I pulled the carb apart and found a piece of debris blocking the main jet. It was actually stuck in the channel between the fuel bowl and main jet.....really the ONLY jet. Ran it for several hours yesterday and problem fixed! Does anyone know of a fuel injected equivalent to the carbureted A12 nissan that is in the performer 405 and that would be mostly bolt in?
    Full Steam Ahead, Nov 6, 2010
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