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Mend Yamaha Water Pump Engine

how can I get more cooling water to pump through my yamaha 9.9?

the 1999 yamaha 9.9 engine used to have a steady stream of cooling water coming out of the engine, now its only a dribble. What has happened, what do I do now?

phelps mcilvaine
July 2008
Get an impeller replacement kit and replace the impeller and ware plate.

Captain Mark
July 2008
check pump impeller for corrosion.flush cooling system.

caine
July 2008

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