>I had a lot of problems at one time with the engine going very rich at mid >range power settings. It was fine at high power and idle. When I reduced >power sometimes it would foul a plug and give a pretty good vibration.
It hasn't done that for the 200 hrs I've flown it. The needle I have in the carb was custom made. It isn't the straight, flat one that Revmaster provides. >You have probably already done this, but be sure you are firing on all four >cylinders. Start the engine and use a spray bottle on each exhaust header >to be sure they are all firing. I assume it vibrates cold also? I have >heard of valves sticking when the engine heats up. I checked it on both ignitions and it was the same on each. Hot or cold, didn't matter. I should have everything back together this weekend with a the prop refinished and balanced (again). I guess we'll see... Steve Glover KR-2 N902G AJO, Ca <kr...@cox.net>
