Question about Yamaha 12V Air Pump

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Rooster tail is not shooting high

The rooster tail on my 2007 waverunner is only shooting up about 2 foot. Could this be a problem? It used to shoot much higher

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If the waverunner is performing normally as far as throttle response and top speed, then the rooster tail not shooting as high as it used to indicates there is a restriction in the nozzle for the rooster tail, not a problem with the ski. Unbolt the rooster tail nozzle from the steering nozzle and inspect it for debris.

Posted on Sep 23, 2009

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There is a hose running from the jet pump housing to the nozzle. You might try taking the hose off of both ends and verifying that the hose/nozzle is not blocked. If it is, blow it out... if not it could be a partial blockage in your jet pump... are you noticing any reduced power/speed/cavitation on accelleration?

Posted on Aug 27, 2010

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Posted on Jan 02, 2017

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