Re: 1978 Johnson 75 hp Stinger stalls when throttled up

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August 20, 2015 at 12:46 am #22373
frankr
Participant

    Watch the throttle arm on the side of the motor as you increase the throttle. Most of the initial movement will be the timer base (spark advance) with only a bit of carburetor levers movement. Once it reaches full spark advance, then the carburetors really open up. What I’m saying is if the carburetors are opening up before spark advance takes place, it will stall. The usual culprit is a sticky timer base.