Reply To: Connecting rev counter to 1964 3hp Johnson question

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January 4, 2023 at 7:01 pm #270696
Monte NZ
Participant

    Good question Frank… . I was just curious to see what the revs were at idle and full throttle and I thought it would be fun to try it on my other motors too, that I run on my boat.  When I tried it yesterday  in the drum, the slowest idle was 900 rpm,  which I guess is about as low as it will go with compression of only  60 psi on both cylinders.

    Thanks again.

    Monte NZ