I have a 03 supersport 550 that runs on only 1 cylinder pto side. Has good spark ,cleaned both carbs and good fuel going to carbs, compression good in both cylinders. new plugs. Someone said it might be the reeds so I pulled the cylinder and checked them and they looked good. I quess the only thing I should of done was switch the carbs around. Anything would be appreciated.
03 supersport 550 only running on1 cylinder
