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    Mercury 84 & 82 90HP 2 stroke questions

    Head problems? The discharge water when running on the muffs is loaded with oil, It ran good last year for 200 yards, then sputtered and quit. Now it will start, but it won't run on all cylinders
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    Mercury 84 & 82 90HP 2 stroke questions

    Cylinder #5 doesn't fire correctly, removing spark plug wires. I've swapped coils, plugs & it doesn't change. The compression is only slightly lower in that cylinder. It starts easily, just won't run under load and smokes alot. I found some troubleshooting discussions and went through them a...
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    Mercury 84 & 82 90HP 2 stroke questions

    I have an 84 90HP #6515252 with electric tilt & trim, but I believe it needs reed valves, as I've been through the troubleshooting guides numerous times. I found a good used 82 90HP #6026719 without electric tilt/trim, the replacement drive shaft and cowling part numbers are different. IE...
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    Lower unit on 1988 mercury 115 2 stroke.

    I have an 84 90HP #6515252 with electric tilt & trim, but I believe it needs reed valves, as I've been through the troubleshooting guides numerous times. I found a good used 82 90HP without electric tilt/trim, the replacement drive shaft and cowling part numbers are different. IE 7333A24...
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    1982 Mercury 50HP lower unit swap with 1975 lower unit differences questions

    I purchased a 1982 Mercury 50HP with a lower unit that was either frozen or got caught on something and ripped out. I ordered what I thought was a direct replacement, but it is slightly different. I don't have the serial number from the replacement lower unit, but the guy said it was from a...
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