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    2.5L lose power after plane and rattle sound

    I just had my the motor professionally tuned up so I'm pretty sure it's not timing ignition or any of those tune up things. It started acting up a little last year and I just dropped it in the water yesterday. When I throttle up she takes right off and at about 3000 or so rpm it starts a sort...
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    Motor coupler spun

    I recenty spun the splines right out of the motor coupler on my stern drive. Was just wondering what could be some causes of this so it doesn't happen again? Pulling the motor on your boat is not the funnest thing to do.
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    Water in lower end something broke. HELP

    Oh crap! Last trip of season and I think a seal broke. Oil looked good all year then I was on lake mich. And all of a sudden WHAM! I shut it down. Prop would spin when out of water but as soon as I put it down it won't push the boat. Very grindy sounding. Drained the oil brown tint instead of...
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    water in lower end?

    i think im getting water in my lower end on my cobra. there is a water pump kit for it with about 6 or 7 gaskets is this how i should go to try to stop the water or is there a better way to tell where the water is coming from?
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    prop size for 21' 1986 sylvan offshore 2.5L

    my boat wont plane when loaded up does anyone know what the factory prop size is. im wondering if the previous owner changed the prop. it has a 13.25X17 now.
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    wont plane/lack of power

    I have a 1986 21' sylvan offshore. it has a 2.5L 4cyl omc. it will plane out if i have just myself and a friend in the boat on an inland lake, but when i take it out on a great lake with 4 guys and all the gear it just doesnt want to plane out and go. Even on the calm lakes when i plane out it...
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