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    Yam 115F cannot reach max revs

    I have been wrestling with this motor for a couple seasons naw and am out of ideas. It is a 2000 115 four stroke. I went through the filters, including the one in the VST, and have chnged injectors numerous times. It currently runs fine, smooth, starts up like no 2 stroke I ever had. However I...
  2. B

    98 Jet Ski only 25 mph

    Please help. I am out of ideas. I have a 98 Jet Ski 750 STx that will only run 25 mph and I believe it should go 45-50. I put in a SBT block, rebuilt the carbs and replaced the fuel pump. ( I have run the carb and fuel pump set up on another ski w/the same SBT block and it runs 50+) I cleaned...
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