Reply To: 1956 Johnson 30 hp won’t accelerate boat up on plane!

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January 1, 2021 at 8:59 pm #226759
need2fish
Participant

    If you find you have a wet plug and it is the bottom one, check to see if it is water or fuel making it wet. Water can slip in through the lower crankshaft seal and in the early stages make for crappy running at high speed.