23/f-300

[kmoose]

Originally Posted by joshmon71

I always try hit a near WOT usually on the inside of Pleasant Bay for a couple minutes to clean the engine out from trolling and idling, if not on the outside. You need to make sure you can get to near WOT with a 4S when propping, and run it there for a few minutes. No need to build carbon up .

That's great advice for those just getting into 4 strokes. My engine idles all day long in between dive drops and I had a huge problem with carbon coking on my exaust valves and probably pistons too. My mechanic told me the same. Run it like you stole it for the last 5 or 6 miles at 90% and WOT for at least 2 minutes before you hit the ramp. This proceedure has keep my engine running way better for the last 1000 hours over the first 700. Also, very important not to over prop a 4 stroke. You sould see little to no rpm fluxuation in seas at any load.