1988 Yamaha 150 Pro V misfire 1 cyl.

JUSTCRUISING

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Aug 9, 2009
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My motor has 1 cyliner that is rapidly misfiring in and out at rpm's above 2000. I have changed all the plugs and 1 coil for the cylinder misfiring. checked all the spark plugs and noticed 1 was wet on the tip while the other 5
seemed to be dry. Removed that spark plug and the motor ran fine all beit on 5 cylinders. Visually did not see any loose or frayed wiring
components. Not sure where to go other than to think it could be a fuel / carb problem at increased throttle speed.

Any help would be appreciated

thanks
 
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