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    overheat warning buzzer issue

    2001 Mercury 50 horse 4 stroke bigfoot Serial number 0T23141 I am having an overheating issue with this engine. I started it and idled for about 5 minutes and the overheat buzzer went off. I changed the impeller and lake tested it. Again, overheat buzzer if left idling. If I brought the revs up...
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    Fuel issue after repower

    I have an older 16 foot aluminum runabout that I recently re powered. I went from a 1995 force 40hp to a 2001 mercury 50hp bigfoot 4 stroke. removed the old motor. removed fuel lines and filter drained all fuel installed new motor installed new fuel lines, primer bulb and filters added...
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    No spark mercruiser 4.3 thunderbolt

    I did the following and have no power to the white/red wire #1 - Connect your voltmeter neg. lead to the engine ground and pos. lead to the white/red wire terminal at the dist. It should read 12 volts. #2 - If 12 volts is present, remove the coil spark wire from the distributor and connect it...
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    No start/dies when warm

    I have an 89 4.3 mercruiser. It has an electric fuel pump with an oil pressure switch. After the engine warms up for awhile it will suddenly die of fuel starvation. If I try and restart, it will do nothing but crank. I primed the carb yesterday and it worked for awhile but the situation repeated...
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