Went out for a ride yesterday where my engine was running fine at 3200 RPM. (Never ran it over that since I had the motor...1000+ Hours). Stopped at the fishing hole for a while, then I started it and went up to 3200RPM, it would stay there for around a minute then go up to 3300. I would try to bring it down to 3200, and it would stay for a minute then down to around 3000. The worst of the problem was when I brought it down to around 2000 the engine was running extremely rough. Excessive vibration throughout the boat and hardtop...<br />The only thing I did that morning was filled up my tank and added oil to the reserve before I went out that morning. Does anyone have any idea what this may be? Or the chain of events for troubleshooting I should go through to figure this out?<br /><br />Thanks
