Yamaha 1998 exciter 270 engine revs high when flushing

UJNM

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Jul 12, 2010
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Hi. I'm new to the forum but I'm looking for a reason why one of my 135 engine may be rev'ing too high only when I'm flushing salt water from the engine. wating is going in but the engine revs up to a high RPM and stays there until I shut down:confused:
 
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