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Thread: Old Mercury 200 Kiekhaefer motor help

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    Default Old Mercury 200 Kiekhaefer motor help


    I posted this in the mechanics thread, but I really want a lot of advice on this. I have an old Mercury 200 motor but have no idea if it will start. The problem is that I need a new fuel tank in order to start it (I think). If I can get this motor started then all I have to do is get a boat. I'm guessing it probably needs new coils. It hasn't been started in probably 40+ years; it was my Grandpa's. I've tried to keep it clean, but I really know nothing about how to fix it. Also the fuel tank is obviously very rusted. Any help is appreciated. Thanks.

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    bump

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    Don G is offline Crappie.com Legend * Crappie.com Supporter
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    I would throw the gas can away. Log in(free) on this site. A lot of knowledgeable Mercury folks.

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    go to the web site iboats.com they can help with the motor click on boating community then boating forums

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    Hey you should get in touch with "Papa Sage" on the Georgia forum. He has a vast knowledge of those old motors. I myself do know that thoses old mercs had a bad reputation for "eating" up water pumps. Hope ya have good luck.

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    get a tank at wallmart a water pump is about $25 you might have to pull the fly wheel and sand the points real easy if no spark real good moters
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    Thanks guys. And I can get a tank at walmart? Will those tanks fit the fuel line, because I thought I had to get the same model fuel tank that it came with, in order for the line to fit the motor and the tank. Thanks for y'alls advice.

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    When buying tank just ask for one with a Mercury fitting on it. Actually the hose, bulb and fitting come as a all in one, then u buy the tank and all tank fitting are the same
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    Quote Originally Posted by OutdoorWilly View Post
    Thanks guys. And I can get a tank at walmart? Will those tanks fit the fuel line, because I thought I had to get the same model fuel tank that it came with, in order for the line to fit the motor and the tank. Thanks for y'alls advice.
    Willy, you can get a plastic or metal gas tank .... and the appropriate fittings for connecting the motor to the tank. If you can't find these at Wal-Mart, check with the closest boat dealership that sells Mercs.
    I'd also change the lower unit fluid, put in a new water pump impeller, and new seals on the lower unit. New spark plugs would be a good idea, as well.

    But, first of all .... I'd check & make sure the flywheel will turn, & pull the plugs & check to see that the pistons are moving. Not much sense in buying & performing all the other fixes, if the pistons/rings are seized up. Don't know as I'd want to even "try" to start it, without knowing the condition of the interior of the motor. You may even want to consider using some "Deep Creep" to flush out the old varnish/corrosion/carbon deposits ... once you get to the point of trying to start it.
    Check all the wires around the motor head, to make sure they're not dry rotted or that mice haven't chewed off the insulation. Check the pull start rope, too ... you don't want that to break when you're trying to crank it !!

    I'm no mechanic, by any stretch of the imagination, and I don't mean to be a killjoy ... as I know how much you'd like to have GrandPa's motor running again. I just want you to be aware of the possibility of spending as much money getting it back into operation, as you would buying a used motor of more recent vintage. It may also be of more value as a antique, to a collector, than it would be to you as the starting point of a new fishing rig ... but, that's a whole other can of worms that I'm not qualified to comment or give advice about.

    ... cp

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    Thanks for the advice guys. I took out the old spark plugs and am going to buy new ones. Tomorrow I'm heading to walmart to try and find a new tank and fuel line. I unscrewed one end of the fuel line and it smelled like dead fish. I think the rubber has deteriorated over the years. Everything inside looks fine from what I can tell, no corrosion on any wires whatsover, but that doesn't mean there's nothing wrong with it of course. Hopefully I can get this thing crankin soon. Thanks again.

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