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Hard starting 912

in General Tech Discussion 7 years ago

  • Re: Hard starting 912

    by » 7 years ago

    Hi Roger,
    Well I removed the primer pump today and hooked up a temporary cable to the starting carb/enrichment on the Bings for a test today and flew the plane for .7 hours. After allowing about 20 mins. For heat soaking I did a restart and it started fine, so maybe that does indeed help but the problem is that it did not happen every time so more testing to follow. I have committed to the change and have ordered a new cable to get it setup. I have not changed the gap on the plugs yet, thinking I will change one thing at a time. My plan is to use a mix of fuels until I am sure that the problem is resolved.
      
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  • Re: Hard starting 912

    by » 7 years ago

    Hi Paul,
    Hopefully all will be good. The plugs gap should be changed even if the hard starting goes away.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
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  • Re: Hard starting 912

    by » 7 years ago

    Hi Roger,
    I have some iridium plugs coming and will gap them to your recommendations before I install them.
      
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  • Re: Hard starting 912

    by » 6 years ago

    A hot 912 does not like to start. I have tried all the tricks mentioned here - and more. You will find some discussions on the internet on this problem.

    What works for me - every time - is to pop a fan (I bought a 12V so called "bilge fan", see boat supply on ebay) into the oil control flap and blow fresh air over the engine for 15 minutes.

    Leo
    fan.jpg (You do not have access to download this file.)
      
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