I rebuilt my 2000 panther 550 and about 200 feet into the drive I lost one cylinder. The problem is that I have fire in both cylinders and one minute I can take the plug wire off of one side and the engine doesn’t change rpm, and when I remove the other the engine stops. A few minutes later it’s the opposite. Seems to be a lot of oil in the cylinder on one side. Had a loose oil line going to the crank and tightened that but no change. Carbs were cleaned, new plugs gapped to spec... it bogged at the top of a hill when I pinned it then it wouldn’t run on 2 cal after that. Only runs with the choke as well. Help!
Panther 550, suddenly loses one cylinder
