Re: ’83 15hp, no power at top end

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April 14, 2016 at 6:17 pm #34809
Don
Participant

    US Member

    I don’t have an 83 manual, what RPM is the proper test wheel supposed to spin up?
    Looked in the 1980 manual, it says the 386537 test wheel is used, 15hp should turn up 6200RPM. BUT, it also mentions that if the engine has a reverse thrust kit, it will only turn up 4800RPM for the 15hp. I’m guessing this RPM drop is due to less exhaust getting into the test wheel’s path. Is your engine a long shaft/sailmaster/yachtwin?
    I dunno, I would consider running this thing on a boat with the right prop before ripping into it anymore….