Re: ’83 15hp, no power at top end

[optsyeagle]

Did you do a cylinder drop test. These motors run remarkably well on one cylinder except they have very little power at the top end. To do a drop test, fire up the motor, bring it to a fast idle, and with a pair of insulated pliers, pull one spark plug boot at a time. If the motor dies when a plug boot is pulled then you know the other cylinder was never firing or is very weak.