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  1. K

    91 Model P50 Head Gasket Replacement?

    I am having trouble with my 91 Model P50 overheating after several minutes at WOT. It runs fine at 3/4 and half but when it is a WOT the alarm goes off and it runs poorly until it sits a few minutes at idle. There is also a small puff of white smoke (steam?) when it is cooling off. I recently...
  2. K

    Water Flow Problems on a 50 Yamaha

    Even after replacing the waterpump seals and impeller I am still not getting water flow through the pee hole. When I first crank it I get a weak stream then after 15 minutes or so of running @ cruise speed in the water I get no flow. Now I am not getting any flow when idling. Does this model...
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