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  1. #1

    98 stx won't go past 8mph...rpms do increase

    Hello everyone. I'm new on here so thanks in advance for your help. My family and I are new to jet ski's and this past weekend i was out on our 98 STX 1100. We managed to flip it once my girlfriend and i but got it back over right away. It started right up and we took off for about another 20 minutes. Then we got into some shallow water with a lot of weeds and I'm guess and hoping this is the cause of my problems but we couldn't accelerate past 8mph after that. Did I suck in a bunch of weeds? The RPM's increase but that's it. Any help with this would be greatly appreciated. Thanks Everyone!


  2. #2
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    check pump inlet no water getting into the pump.

  3. #3
    steve45's Avatar
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    Don't run it in less than 3 feet of water, and don't run it through weeds. Hopefully you didn't get trash in the cooling system, too.

  4. #4
    ercBOOSTED's Avatar
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    First off you need to look underneath the ski and check to see if weeds are hanging from the intake grate, then get a peak inside the pump housing the see what you have in there. Maybe try to flush the ski with water. Not sure how to do that on your ski. The newer skis have a spot to hook the hose right up. When flushing, make sure that you turn the ski on FIRST before you turn the water on and make sure that you turn the water off before you turn the ski off.

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