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  1. K

    OVERHEATING issues (New water pump, thermostat works fine)

    I own a 2011 Yamaha 50 outboard I recently just changed out my water pump. Everything worked great for about an hour but when we started idling, the motor began to over heat. Im confused because water is coming out the tell tale with great pressure, but the water coming out is scalding hot! I...
  2. K

    Thermostat question

    I own a 2011 Yamaha 50 Im having an issue with my motor over heating after changing the water pump out. Boat ran fine for an hour until i started idling. I checked the thermostat to see if it was bad. (Tested it, it works in boiling water..) The hole the thermostat came out of was dry. Shouldn't...
  3. K

    Prop won't spin by hand when in upper unit....

    I have a 2011 Yamaha 50 outboard. I had to drop the lower unit to change out the water pump because my impeller, etc. was shot. Everything seems to work fine on the lower unit. Prop spins freely when lower unit is detached. When I insert the lower unit into the upper unit, the prop will no...
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