Re: 40hp Big Twin Lacks power

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April 6, 2016 at 1:59 am #34402
david-bartlett
Participant

    The best way to clean the carb is to remove it from the motor. Not a complicated job on this motor. Only low speed needle is adjustable, high speed is fixed. Get a kit from the dealer and open it up.

    Are you sure it is fuel related and not ignition. Are the coils original, or have they been replaced? Points and plugs clean?