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    what's wrong part II

    Background: New to me 17' Checkmate Sportfire with a Merc 150 that has been worked over: 1:1 gears, tuner, nosecone, powerlift, punched out .30, lightweight rods and pistons. (I just confirmed the background info on the motor last week after talking to the guy who built it up. I think the key...
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    What could be wrong?

    I have a 1987 Checkmate Sportfire (small boat) with a 2.0L Merc V150 and an OMC Powerlift. This thing REFUSES to pull a skier out of the water. Saturday I had a 4-blade Trophy 26p Prop on it and it just would not pull out a skiier. I tried every combination of trim and lift and the engine just...
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    87 2.0L Merc Lower Unit Oil

    Does anyone know offhand the quantity, type and plug locations for lower until oil for an 87 2L Merc V6? Thanks!
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    Help with Motor ID

    Hi, I recently acquired a boat with a merc outboard. It's a carb'ed V6. The serial number is OB199323 and the cowl says "100" and "2.5L Drag Racing". I am confused because I think this is a 2.0L motor. The last owner said it was a '93 but everything I am seeing says it's an 87. Apparently...
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