2008 Merc 175 power issue

hgvoce

Cadet
Joined
Dec 1, 2011
Messages
29
Motor cranks instantly, runs smooth, but at full throttle is seems to be "bogged" down / not at peak RPM for full throttle. After running the motor for a few minutes like last weekend at full throttle all of a sudden the boat lunges forward as the power comes up to where it should be. Run only ethanol free gas, recently put a can of sea foam through it plus a de-carb which really did not produce much smoke indicating no carbon build up. After the initial run in the motor runs at full power the rest of the day
 
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