1996 Mercury 150 Hp stalling

[captcharlie]

This Spring I bought a 1996 Robalo 1820 CC with a 150Hp Mercury Offshore series outboard. The boat/motor combo is pretty heavy (2800 lbs). The power head was replaced by Mercury in September of 2001.<br /><br />While under way, the engine stalls about a third of the way into the rpm range (about 1500rpm). The engine starts back up immediately. But this happens most of the time unless I gun the engine.<br /><br />Also, at wide open throttle, I'm only producing about 4700rpm. The manual says WOT should be between 5000 and 5600.<br /><br />Any thoughts? Is my prop over pitched?<br /><br />I appreciate any comment.

 

[Reel Appeal]

Re: 1996 Mercury 150 Hp stalling

captcharlie,<br /> Is the fuel filter clogged?Fuel restriction?What size prop is on your Robalo?<br />Over a 19 pitch would be too much....17 pitch may be better...If you make a prop change,watch those RPM's.