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    Piston Replacement

    I've just got a hold of a 30HP Nissan with a blown top piston. No compression on that top cylindar at all. Several questions about it... I'm wondering if I can get to the gudgion pin through the reed valve hole to remove the bad piston, or will it take a complete tear down to get at the...
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    SKEG 85hp Evinrude

    I was towing the boat the other day and the motor dropped down off the tilt bracket. The tip of the skeg made contact with the pavement a couple of times and now I can't really tell if it's bent and how much. Can anyone tell me if the skeg sweeps right or left at the bottom on a 1972 85 hp...
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    Running at full throttle, momentary break in engine noise

    I'm running out a 1972 Evinrude 85hp I picked up as an unknown basket case. The thing fires up and runs really nice. And it pushes my boat, with the wife and the dog and a full load of fuel, like it's empty. But.... I was running at full throttle, and it's singing a beautiful note. But it...
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    Water Pump Impellers

    OEM or After Market?? Who has an opinion about this troublesome impeller replacement issue. I can buy the OEM for my motor, but the parts guy wants me to buy the whole kit for $120. I can also find a Mallory or a Siera replacement impeller and spend somewhere in the neighborhood of $30 - $50...
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    1972 Evinrude 85hp Stuck In Forward

    Just started work on an old Hydro Electric shift Evinrude... The lower unit seems to be stuck in forward at the moment. But the shift button is giving good voltage to the shifter leads, and I hear the very faintest click when I apply voltage to the leads with a hand switch. (ear pressed up...
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    1949 Mercury Super 5

    A buddy gifted me an old Super 5 he was having trouble with, and I got it running this past weekend. But, I can't tell if it's pumping water or not. Does this motor have the standard little whizz hole in the back or does it push it's waste water out the exaust. I found a little tiny hole...
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    Johnson 55HP 1978 55EL78S carbs

    I just cleaned the carbs because the motor was not idling. The motor now idles a lot better. But the top end is now way off. I can inch up the throttle and get the boat up on plane, but if I go past about 3/4 throttle, the engine bogs down or can go Whaah Whaah Whaah Whaah Whaah Whaah Whaah...
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    Gear Ratio Johnson 55HP 1978 55EL78S

    What is the GEAR RATIO of 55EL78S Of all the outboard motor specs, the actual propeller REVs seem most important if you are evaluating props. My motor is supposed to develop 55 HP at 5500 Engine RPM, but I don't really know what's happening until I know the gear ratio of the drive. If it's...
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