Reply To: This sound like it needs a tuneup?

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August 6, 2021 at 1:26 pm #244322
David Stanton
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    Like Frank said – it could be running on one cylinder – they will run quite well on one, and then all the gas/oil form the other cylinder ends up in the water. Try running with one spark plug wire disconnected, and then the other. If there is no change in the running with one of them off, you have found which cylinder is dead.
    Dave