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  1. M

    1989 70HP 2-stroke problems

    Hello everybody, I have a 1989 Mercury 70 HP (3 cylinder) mounted on my Glastron GT-150 and I have some troubles with it. When the RPMs are between 900 (idle speed neutral) and about 2000-2500 it "does not run good". I mean it's not very stable, it vibrates a lot, etc... When I'm at higher...
  2. M

    V6 3.8L 1981 + 800 gearcase problems

    (I'm from Switzerland on Lake Geneva, please excuse my bad english) Hello, I have a 1981 Starcraft motorboat with an 1981 OMC 3.8L V6 motor and an OMC 800 gearcase. During this winter I had changed the upper and lower gearcase (buy "new" ones on eBay) and i have changed the camshaft and some...
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