Hi tgreen<br />I doubt that a carb adjustment, if there was one like you ask for, would correct your problem. Max RPM for this motor is 5000-5200. You have other problems. Test compression and go from there. You might not be firing on all cyls. You may have the incorrect prop. Your boat may be full of water or too much gear.
Hey,<br /><br />I think you want to be looking at a 13" and anywhere from 17 to a 19 pitch, depending on your desire for speed or quick start.<br /><br />Ted
