1996 Mercruiser 5.6 liter losing power

abeletsky

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Jul 26, 2013
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Boat engine (Mercruiser 5.6 lt) continually accelerates & decelerates at speed until I bring the throttle down

I just put the boat back in the water after 2 years. At low speed (less than 20 MPH) the engine runs fine and idles fine. When I try to accelerate, it starts to accelerate and decelerate (like someone putting their foot on the gas and removing it continuously) until I throttle back down.

Would anyone know what can cause this?

Alex
 
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