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    2002 Mercury 40hp 4 stroke

    I'm having problems with my engine. Symptoms originally included total engine cutout when coming off full throttle together with sometimes a cutout when trying to throttle up. There is a misfire on the centre cylinder which is pronounced at 2000rpm but clears above about 3000 rpm. This misfire...
  2. C

    2002 Mercury 40hp 4 stroke

    I'm having problems with my engine. Symptoms originally included total engine cutout when coming off full throttle together with sometimes a cutout when trying to throttle up. There is a misfire on the centre cylinder which is pronounced at 2000rpm but clears above about 3000 rpm. This misfire...
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