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  1. #1

    2004 800R bogging, pulling my hair out

    I have a 2004 800r ~ 100hrs. Recently had the carbs cleaned and new kits installed. The first time out after the carb kit it ran great and reached ~ 57 mph. Took it out a few days ago and it ran fine but noticed that after doing turns and immediately going to wide open throttle it would go ~ 15 to 20 mph for about 10 seconds then would accelerate to ~ 57 mph like normal. Did this several times and got the same results. BTW, the compression was 135 and 138. Any ideas or things I can check, is it saprk, fuel, carb, pv's etc, etc. Other than that it runs fine. Any and all comments appreciated.

    Yakski


  2. #2
    Happily Self-Employed WFO's Avatar
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    check to see if the power valve servo is going bad

    sounds like the valves are hanging open

  3. #3
    GoFastGuru's Avatar
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    check to see if you have a cracked reed .are blown out crank seal check powervalves first for sure

  4. #4
    GoFastGuru's Avatar
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    pm me your phone # i will help you get to the bottom of this

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