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  1. M

    Motor running rough

    Hi i am new to the whole outboard machanics thing, also new to the forum, i have a 1974 Mercury 650 thunderbold, 3 cyl. It will crank with the first key turn very easily, and idle ok for about 30 seconds and will seem to hicup and die down some times quiting and others it will jump back up to...
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