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    '89 15hp thermostat part number

    Hi, i need to replace my thermostat and the part number that i have does not bring up any information on google or any of the parts sites. I am looking for a 1989 Johnson 15hp thermostat, part number that i have is 432759. It says that that comes with a valve seat, part number 334742. Anybody...
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    25hp Johnson - the good and the bad?

    I'm looking into buying an older 25hp motor, probably around the mid to late 80's early 90's. I don't know anything about these models and would like to know if there were any bad batches or years to avoid. I beleive that the 18-20-25 were the same chasis so the 25 would give me the best power...
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    15hp 1989 dying after idle

    I'm running a 15hp in after a hone and new set of rings. My mixture was at 25-1, but i suspected that of fouling my plugs after a prolonged time (5-10 mins) of idle or slow speed running. The motor would not splutter, it just lost revs as if it was starving for air or fuel, and then dies. I...
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    15hp Water Passage Restrictors

    Hi all, i have a 1987 15hp Johnson that i'm stripping and re-doing the rings. I burnt them as a result of a blockage in the cooling system. Some-one ran the engine dry at some stage a piece of impellar broke off and lodged in the cooling channels. I'm using a Clymer manual that makes...
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