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  1. #1

    Dropped a power valve!! Help !?

    Ok so I have a gp800x and it has been having some low-mid range hesitation .. Runs like a scaled ape on the top end ...

    pulled the power valve covers and the rear valve is gone!!! Shaft,connector and brass bushing are all still intact.. THe piston is fine as well as the cyl.. Can you really get lucky and it drop and not hurt anything ? I've put 4 hours in it with this issue ( it sat for 5 years before I just got it) so I rebuilt the carbs and have been chasing my tail since..

    Id think if it went in the bottom end that it would have toasted the crank or something and wouldn't still be running fine? Thoughts?

    Thanks chris

  2. #2
    TX21's Avatar
    Join Date
    May 2007
    North Texas
    Is the head not visable at all? I kinda doubt you could lose the head of the valve and it make it to the bottom of the motor. Is it in the exaust system?

  3. #3
    No I can't see the old valve at all.. Piston top and cyl wall look just fine as well valve wasn't in the manifold on in the large chamber..

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