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    Are these Mercury distributor parts interchangable?

    My 1974 Merc 650 has intermittent problems where it just quits running suddenly. I can usually get it going if I shove the throttle all the way forward and back a couple of times before starting again. I have been told that I likely have a bad trigger.<br /><br />A friend has a 1972 or 1975...
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    Looking for real-time mechanical help in Seattle

    This board is a tremendous resource. However, for somebody as mechanically challenged as I am, sometimes it makes sense to turn the problem over to somebody better equipped to do the job.<br /><br />I am having trouble with my 1974 Mercury 650 all of a sudden getting no spark. See the thread...
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    1974 Mercury 650 - No spark

    So I bought this old boat a couple months ago from a guy who said the motor wouldn't spark. I found that it sparked fine, and with new fuel and a little TLC/elbow grease, it ran fine. The last three times out it has run perfectly - started right up on the second or third crank, warmed up...
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    Merc 650 1974 impeller replacement Q's

    Hello,<br /><br />I had a thread earlier about this motor, that I got running and runs like a top now. While I still have a nagging little voice in the back of my head saying, "if it ain't broke don't fix it", I am about to try to replace the impeller just because it hasn't been done in years...
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    Eagle SilverStriker 600plus fishfinder - 2 thumbs up!

    I'm looking to buy a budget fishfinder for my new (old) first boat. I fish in Puget Sound in Washington State mostly. <br /><br />In looking at all the choices online, Navman seems like a brand that has a lot of features for a reasonable price. I think it's model 4150 has speed and...
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    '74 Merc 650 OK slow, won't go fast

    Hello, all you helpful souls,<br /><br />I have just bought my first boat - a little 16 foot Bayliner with a Mercury 650. It had been sitting for a couple of years and would not start. With some new gas (sour fuel was most of the problem) and a little tinkering, I got it running, and it runs...
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