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    Mercury 1965 65HP Throttle Issue?

    After a few weeks of troubleshooting, I finally got the engine to turn on. Now my problem is while I push the throttle lever forward slowly the propeller starts to spin but but at a slow constant speed. Even after after pushing the lever all the way forward the speed remains the same. The same...
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    spark near the chock selonoid when i press in key

    Was working on my mercury outboard today. A problem I didn't have before is that when I insertion the ignition key and push in to chock I get a spark near the chock selonoid. Grounding problem?
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    Is the plug on top of my Mercury OB engine for a temperature sending unit?

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    What is the year of my Outboard Mercury Engine?

    I have a Mercury Outboard that is 4 cylinder with a Model 4D-3 Magneto Type. The sticker on the engine says it's 65Hp Thunderbolt. I can't be sure if the previous owner put these stickers on because the front plate is blue and shows Mercury 500 but the cowling is a wrap around with red stripes...
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