Re: 1972 Johnson 2hp – low speed and idle problem

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July 18, 2015 at 7:31 am #20335
frankr
Participant
    quote Stan_K:

    Thanks Frank. Could you explain “throttle/spark sync”?
    The exhaust relief holes were above the water line when tested.

    Speaking of when the carburetor butterfly starts to open as you advance the spark (throttle lever). It’s been awhile since I’ve looked at a 2 but I suppose there probably is a mark on the cam that opens the butterfly.