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  1. J

    Would a spun prop hub cause over speed alarm?

    I was on a fishing trip and my yamaha 90hp 2 stroke seemed to be running fine. When i got to a certain speed it would choke down and go into "protect mode" (on two out of three cylinders i believe) and an alarm was on. After letting it set for a minute we restarted it with no alarm. When i wasnt...
  2. J

    Replacement prop grinding on motor

    Hi. I just purchased an aluminum replacement prop for a 2000 yamaha 90hp 2stroke. The previous ss prop would spin freely and smoothly. The new one, however, grinds a little bit and is difficult to hand turn. I haven't ran it yet, but is there normally a "break in" period where it will smooth out...
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