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    76 Evinrude wont increase speed

    I have a 15 HP on a 14' jon boat. Motor runs well, but travel speed does not increase with RPMs. At WOT, boat is not even close to plane. I can feel the prop pushing water and accelerating to a point but acceleration stops. I messed around with the trim and the heighth of the cavitation plate...
  2. B

    15 HP Evinrude wont plane

    I have a 76 15HP Evinrude pushing an 80s something Sylvan jon boat. I cant get the boat to plane. Motor runs excellent. I can feel it start to push the boat when I gun it but acceleration stops at about 1/3 throttle while rpms increase until the motor is running wide open. I suspect something is...
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