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  1. J

    Mark Twain 1985 MTF211

    I have a Mark Twain boat that had a canvas on it. I'm wondering if they came as a factory option back then or is most likely a custom canvas. Or does anyone know who it is that was the major supplier of boat canvas back then. I have part of the canvas and was hoping to find out who may have made...
  2. J

    Onieda Lake, NY

    just curious how many out here are fishing this lake or lake Ontario from Oswego NY?
  3. J

    omc gear ratio vs speed

    still working on rpm and speed issue in this boat 1987 mark twain 21' with a 4.3l gm 2bbl carb with points and it has a omc outdrive on it. the engine is only giving me 3800 rpms at 28 mph, and it has a 14.5 X 19p aluminum prop. i have gotten the engine running right so for argument sake...
  4. J

    Dwell setting

    does anyone know what the recommended dwell setting is for a 1987 4.3l Gm OMC engine? i still don't have a manual for this motor or boat. it is ina 1987 Mark Twain 21' not that should make much difference.
  5. J

    points question

    on my 1987 OMC 4.3l gm engine i have been working thru some issues with it. the biggest gremlin appears to be my points. i just change them because i couldn't get up on plane and looking things over it appears i somehow managed to forget on not noticed the spring missing for them causing points...
  6. J

    prop choice

    on my 21' boat i currently have a 14 1/2 X 19 degree pitch prop at full throttle it is turning approx 3800 rpms giving me about 28mph. if i switch to a 17 degree prop i know i will have better take off but will i lose much top end or maybe even gain a little more speed with the extra rpms i...
  7. J

    not sure what plug wires to use for my omc 4.3l with points

    i have been having problems with not getting up on plane. my engine seems to lose power and "breaking up" in the higher rev area. i have done a bunch of work on this motor, in a 1987 boat. about the only thing left is the plug wires, right now it has HE noise resistant wires on it, are these ok...
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