Finally replaced all the torched electronics in my Ebox from my start relay grounding out and the ski was running great, for about half a tank. Was out riding and then it seemed to drop to one cylinder, barely able to get on plane I limped it in and found that one of my spark plug terminals had come unscrewed. Easy enough, put a different plug in (clean used plug) and took it back out, almost immediately started running bad again. Put it on the cart and double checked the plug boot was on good and took turns grounding one wire and running it on one cylinder then the other. Front cylinder ran strong rear cylinder barely ran so I swapped the wire from the front to the rear with the same result. 61x cases with single carb so I know it isn't a fuel deliver issue, I didn't get a chance to try new plugs before a storm blew in. I will be checking the compression soon but I recently checked it at 180f 175r and doing the finger over the plug hole test it felt strong on both cylinders.
The front plug is dark brown and dry and the rear was pretty fuel soaked and the piston looked a bit washed compared to the other. I am thinking maybe a reed issue on the rear cylinder?
The front plug is dark brown and dry and the rear was pretty fuel soaked and the piston looked a bit washed compared to the other. I am thinking maybe a reed issue on the rear cylinder?
