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  1. M

    1987 40 hp Johnson problems

    Need to pull the flywheel off to do a tune up what size is the bolt holes and are they standard or metric for the pulley puller? By the way thanks for all of the help I have gotten from everyone.
  2. M

    1987 40 hp Johnson problems

    I have a 1987 40 hp Johnson outboard, while running full throttle RPMs up and down without touching the throttle. Removed old gas replaced with fresh gas and oil. Replaced gas filter, gas line with new connectors and prime bulb, still same problem when motor is working properly wide throttle is...
  3. M

    1987 40 hp Johnson

    I have a 1987 40 hp Johnson while running the boat lost power spitting and where running right around 5300 RPM when trouble started with boat wide open started to spit and lost power to around 1100 RPM then it would take off again for a few seconds then back to low rpm. The primer bulb on gas...
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