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Thread: older oil pumps

  1. #1

    Join Date
    May 2006
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    So. california
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    older oil pumps

    Hi,
    I have been asking a lot of questions to help out my 97 760 ( Older and slower yamaha's need help also)
    The oil pump on my ski does it pump out the same amount of oil a idle and wide open? Ski smokes bad after a idle and then wide open (using yamaha lube Synthic ) would it be be better to go to pre mix? what ratio?
    Ski acts like it is loaded up after take off.
    Any ideas welcome
    Jesse

    P.S. Ski hooks up a lot better withe R&D intake grate now


  2. #2
    ABBOTT's Avatar
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    Jul 2005
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    your pump will deliver a predermined amount depending on your throttle position.

    When you pull your throttle---you are actually pulling two cables - one for fuel and one for oil delivery. The less throttle pulled = the less oil , and so on.

  3. #3
    spud's Avatar
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    The 760's didn't have the variable rate pumps. I switched my old Waveblaster 2 to premix got rid of most of the bog and the smoke. If I had known about Jetworks then it would have been different.

    Everyone has a different opinion. I like premix.

  4. #4
    ABBOTT's Avatar
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    Quote Originally Posted by spud
    The 760's didn't have the variable rate pumps. I switched my old Waveblaster 2 to premix got rid of most of the bog and the smoke. If I had known about Jetworks then it would have been different.

    Everyone has a different opinion. I like premix.
    760?? oops--my bad

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