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waverunner acceleration?

My 1992 yamaha waverunner is stuck at a low speed. The engine will rev when throttle is pushed but there is no acceleration. I'm thinking it may be the impeller or jet pump. any ideas? thanks,

td
July 2008
YamahaYamaha waverunnerBoats, PowerboatsWaverunner Yamaha Engine
Yes, your right, its the impeller and or the wear ring, it cant be anything else, you can find them on ebay very cheap

Don
September 2008

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Yamaha Waverunner No Acceleration - Help!