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1977 Johnson outboard motor 70 hp runs fine for about 20-30 min. but once it heats up the motor slows down to where it doesn't make a wake and sounds like its not getting enough fuel.....whats going on/could it be an ignition coil? Thanks Jeanie

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Sounds like you have a cooling isue . might need a new water pump or impeller.

Posted on Nov 02, 2010

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