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  1. #1

    Unhappy more problem on my engine

    Hello ? sorry for my english. I wanted to ask you a few questions because I can not understand the problems of my engine. these components are mounted: valve rotax with reteiner, head and soft dim was 0.9 mm, R2A + ECU injector brown, open loop, modified exhaust, super charger impeller racing rotax + spacer, ok? I have this problem, my engine runs only to 8400 rpm with nozle 80mm and 14/19 solas and the color of the spark plug and very black, to get the best engine I mount my stock injectors 42 lbs. and for correct idle i remove idle by pass valve ,becouse if i don't remove my engine don't stay in idle , Then turn off the engine when I go to a few thousandths of a second engine rpm and 1750 the least when I push the stop with the engine running for a second 2000rpm and then go off, then start the engine when the engine starts and turns well but after 2 / 3 / 2 spins as if they were only with two spark plugs, everything is very strange, you never had the timing chain sprocket has moved? I do not understand I'm going crazy, I also replaced the two facilities eletric + MPEM the problem is the same. HELP ME hello very thanks.


  2. #2
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    Have you been measuring your AFR?

  3. #3
    no i don't have this

  4. #4
    West Texas RXP skoepp's Avatar
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    If you have rotax 8,800rpm ecu you might have trouble with idle with stock cam.
    Just a thought.

  5. #5
    Sorry i don't have stoch cam i have r.r. cam sorry i don't write on my msg.

  6. #6
    West Texas RXP skoepp's Avatar
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    Ok

  7. #7
    yes this cam used my friend with ecu r.r. r2 and this is endurance r.r. cam sorry i don't remenber number cam.

  8. #8
    why when i push stop button an my engine running to 1750 my engine up rpm to 2000 and after stop?

  9. #9
    i don't understand why when i push stop button my rpm up 200 rpm and after my engine finish running?

  10. #10
    West Texas RXP skoepp's Avatar
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    Sounds like you definetly got some electrical issues going on?
    Does it do the same thing when you remove the dess key or does it just shut off normal???

    Hold tight for a bit as i am sure others will chime in with some ideas.

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