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  1. #1

    Yamaha FX SHO QUESTION

    What problems will too much fuel pressure cause besides too rich .... ski sputtering , loss of rpm's , loss of top speed , ( ski only does 55 compression 135 or above all cylinders new pump ) ? All I mentioned ? Thanks in adavance for any replies these are the problems I am having fuel pump was from a limited race boat starting to believe it has been modified ..... also on left turn I loose 600 to 700 rpms right gain them .......


  2. #2
    Throttle cable doing the rpm thing. Hows your sc clutch?

  3. #3
    Supercharger and clutch we changed ski was sunk sat for months In customs coming back from overseas race we cleaned harness ect

    So you think rpm thing Is the throttle cable its fly by wire one can the sensor on the throttle body be bad also

  4. #4
    Quote Originally Posted by yamaha189 View Post
    Supercharger and clutch we changed ski was sunk sat for months In customs coming back from overseas race we cleaned harness ect

    So you think rpm thing Is the throttle cable its fly by wire one can the sensor on the throttle body be bad also
    Pretty sure that turning the handle bars all the way causes the cable to pull and give a little more gas. I have the same issue on my sho. It may have and accelerator position sensor up front that actuates the TPS, but there is still a cable involved. That is what im talking about here.

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