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  1. #1

    Pro 785 Limited RPM

    I have a 98 Pro 785 that is set up for racing in the limited class. It has an ADA head (160 psi), red top 44s and a Hot Seat CDI. I'm only getting around 7600 RPM. My 99 stock Pro topped out at 7800 and my old 99 limited about 8000. I've checked everything out on this 98 and everything seems fine. Exhaust valves are working fine as well. Does anyone have any idea where I might find a few more hundred RPM?


  2. #2
    Polarisracer166's Avatar
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    Pro 785

    John, Give me a call to discuss... Thanks Jeff

  3. #3
    Check your Exaust hoses for soft spots or holes, Better yet start it up rev it and take the seat off see if theres any exaust fumes choking the engine at all.

    Check fuel filters

    How old are the plugs, wires, What octane are you running, Mix Ratio and age of the gas.

    Has it gotten porgressivly worse? I have had it happen on my 785 twice the Key on the flywheel folded enough to retard the timing and make it not rev as high in the water.

    good luck,
    Will

  4. #4
    Connecticut CrazyA's Avatar
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    Possible water intrusion into the exhaust path limiting RPM.

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    would cracked pipes cause this problem also ???

  6. #6
    Connecticut CrazyA's Avatar
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    Sure could...

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by 785 lugs View Post
    would crack pipes cause this problem also ???
    I thought that might make you go faster.

  8. #8
    Water Bum Rodneyae's Avatar
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    What about crack pipes making you faster. LOL

  9. #9
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by Rodneyae View Post
    What about crack pipes making you faster. LOL
    Sure would if the Coast Guard was chasing you!

  10. #10
    I'm pretty sure I have a cracked pipe. Does anyone know where I can find stock pipes for a Pro?

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