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    OMC serial number look up

    Does anyone know where to research OMC model or serial numbers? im trying to determine if i have a lo profile or high profile unit to get a replacement.
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    OMC stringer replacement.

    Boat is a 71 stamas 24ft with a chevy 350. The sterndrive was giving us some issues last year, get about a fuel miles out on a strait shot and it seemed like it would slip or drop into neutral and couldn't get her to move. let it sit for a while and she would be fine for a little before before...
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    Spark plugs

    Ok dumbest question of the day, I've been searching for a little while now and cant seem to find a part number. I just rebuilt the engine and getting ready to fire it up tonight. OMC, Chevy 350ci (5.7l) What is the part number for the proper spark plugs? I wanna make sure i've got the right...
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    Flywheel Noob question

    Rebuilding the 350 for the boat and was looking at the massive flywheel thats on there now, I've read a few things about guys who have shaved their flywheels in there boats to squeeze a little extra out of them. I was wondering if there would be any down side, or harm to running a flex plate as...
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    Damn these car parts

    New development, As i'm pulling the motor apart, I'm finding everything that was used to assembly this motor was from the autoparts store. Carburetor is wrong, distributor is wrong. New carb will be ordered shortly for marine use. I was wondering is there a huge difference between an automotive...
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    OMC stringer 800 slips on long trips

    On long trips, when we get about 7miles or so on her something slips and the rpms shoot up, like a clutch slipping in a car, anyone have any ideas what could be causing this or how to fix it?
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    Engine Rebuild questions 5.7l

    Its an OMC set up with a GM 350 5.7l. Its time for a rebuild on the motor. I was told to run marine gaskets in the engine and I was wondering how crucial this is as opposed to running normal automotive gaskets, I know about using brass freeze plugs and other marine components when rebuilding but...
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    noob prop question

    71 stams 24 ft, with an OMC 800 outdrive. Boat runs about 18knots crusing speed at about 2800rpm and max speed was about 20knots. No matter how much throttle i give her, she just hangs out at 2800rpm and 18-19knots. I'm not sure what prop size i'm currently running, i'm going to check that out...
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    Outdrive trim unlocks in reverse

    If anyone has read my other post, all other problems have been fixed! forward and reverse work beautifully, boat ran great, takes a bit to plane, seems like its laboring a little hard,(maybe prop change?) but other than that its great, the only problem now is when you engage reverse, and give it...
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    OMC 800 intermittent reverse.

    Just purchased a 71 stamas 24ft with 350 I/O I was told its an OMC 800 outdrive,with electric shift, haven't looked to compare model numbers or anything yet. I have perfect forward with no issues and an intermittent reverse. Test like illuminates on the wire going into the lower drive, but wire...
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