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compression 760?

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  • #1

    compression 760?

    The compression test on my 2000 GP 760 was, on average:
    140 on the front and 135 on the rear. Is that ok?

    Plugs look ok. What to look at next for slight roughness? Roughness even occurs at mid throttle.
    <b><i> 98 ProCraft F/S 115 Mariner <br />00 Yamaha GP760 </i>...............STOLEN!!!</b>
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  • #2
    That difference is spot on, the 760 is supposed to have a 5 or so difference to the rear. I would say your gauge is just a bit off in general, giving both slightly low numbers. Sounds fine.

    Do you have a problem??
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

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    • #3
      Not sure yet what problem I have.
      I've only had the ski out twice for a total of about 30 minutes. Last time out I noticed it ran a bit rough and had a slight vibration at mid throttle, not sure of the RPM's. Will have to pay more attention next time out.

      Ski only ran about 44 mph too. I think you told me bebore it should run abot 54?
      <b><i> 98 ProCraft F/S 115 Mariner <br />00 Yamaha GP760 </i>...............STOLEN!!!</b>

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      • #4
        Try fresh plugs first.
        SBT Tech Support is here to help with your problems.
        We try to answer each question quickly and accurately.
        Please do not use Private Messaging for Tech Support, use the forums.

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