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1996? Yamaha 8hp 2-stroke not peeing / getting hot at higher RPMs

dbsea

New member
Hi all,

i'm new to this forum and have a problem with my outboard. Last season I replaced the impeller, housing, thermostat, and thermostat collar and cleaned a bunch of sand out of the area where the thermostat is. It seemed to work pretty well last season. This season, it's starting great on the first pull, and running fine at lower speeds. When i get going fast, the telltale slows down and starts to sputter, and in some cases will stop until I return to idle and the motor cools down. What could be going on here??
 
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