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  1. #1

    Unhappy Yamaha waverunner III 96 650cc problem. PLEASE HELP

    Hi I own a 96 yamaha waverunner III 650cc everything was ok until I took it to the lake yesterday the jet ski loss power and acceleration I cant even pull my tubing anymore. I check the impeller and everything look good, I did a compression test 125psi in both cylinders. what else can be? Please help

  2. #2

    Join Date
    Jul 2005
    Central North Carolina
    There is a small fuel filter in side the carburator fuel pump side that gets stoped up causing a power loss. When you run the engine does both sparkplugs seem to get hot the same temp. I am sure you replace the sparkplugs first if not do that for sure.

  3. #3
    mudslanger's Avatar
    Join Date
    Jul 2010
    Huntsville Al
    Check your exhaust box and make sure its not busted. . a exhaust leak will kill the power.

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