2016 MERCURY 115 ELPT 4S 2.1L

by Roger
(Knoxville, TN)

Occasionally the motor starts to miss badly, but then will run fine.

You can run fine for long periods of time and then all of a sudden it starts to miss, then after awhile it will be fine again. Doesn't seem to have any pattern to it.
Sometimes it runs fine without turning it off and then restarting. Other times you stop and anchor and all is fine upon restart. Plugs were new at start of season as well as fuel filter.

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