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  1. J

    '85 50HP 2-Stroke - runs poor with wrap-around cowl on

    Hi All - Finally (with your help) seem to have my motor running like a beast, but only with the wrap-around cowling off. I'm running 5500RPM at WOT with it off, 4000RPM WOT with it on. Pretty obvious there's an air issue. Is it possible there is an exhaust leak causing dirty air? I've read...
  2. J

    '85 Merc 50HP 2-Stroke - Rich/Lean Adjustment

    On the adjustment screw - does turning it to the right make it rich or lean? I've been trying to tune my carbs for a little while. My plugs still seem a bit wet and I'm getting some stuttering. Overall, I'm running a million times better than before, but I want to get rid of the stutter/misses...
  3. J

    '85 50HP 2-Stroke - Does not run in water

    Hi All - I have an '85 Mercury 50HP 2-stroke on my '16' Alumacraft. The motor runs fine when not in the water. I hooked up the ear muffs and ran it for about 5 minutes. No overheating, revving great, idles super smooth, etc. When I put the boat in the water, I go about 20 yards and then it...
  4. J

    Prop Recommendation: '85 Merc 50hp 2-stroke - 16' Alumacraft

    Hi All - I just bought an '85 16' Alumacraft Maverick with a 50HP Mercury 2-stroke. Boat hadn't been run since 2017, but I've given a restoration/rewire and went over the motor. Prop has a chunk missing. Motor gets up to about 3500 RPM at WOT. It will hit around 6K without drive engaged...
  5. J

    1985 Mercury 50HP 2-Stroke - Tach Recommendations

    Hi All - I have a 1985 Mercury 50HP 2-Stroke on my 16' Alumacraft. I'd like to install a tach on my console. I'm reading conflicting info on what actually works properly. I have a basic tach with the wire that winds around the #1 plug wire on an old 14HP Evinrude, but I've seen these may not...
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