I have a 1998 Banshee (basically stock). When I bought it in 1999, it came with Toomey pipes, boost bottle, proflow airbox, and probably the carb jets required for the Toomey pipes. It ran flawless for 3 yrs. FYI, I have just enough mechanical knowledge to make me dangerous. Approximately 3-4 yrs ago, the cyliner on the left side died. At that time, I pulled the motor and replaced both pistons, rings, and gaskets. I broke in the new top-end slowly over a 2-3 day period (running fine/both cylinders working properly). My son then took it for a more aggressive ride and the left cylinder dropped again. Needless to say, the Banshee has been sitting on a jack stand with a cover on it in the barn for the last 3 yrs. My son came up yesterday and we attempted to get it running. We changed oil, new gas, new sparkplugs. Started on the second kick. As expected, the only cylinder working is the right side. With a little throttle, the right exhaust is warm, the left exhaust blows out raw fuel !!! We checked the spark and both sides and both are sparking well. We removed the airbox to inspect the carbs. Trottle timing was indentical. We removed the reeds and did not see any cracks/chips. I do not have a way to check compression, but when I put my finger over the sparkplug hole, both sides feel equal. With it running, I removed the radiator cap to see if maybe the radiator fluid would flucuate with increased throttle, but it did not. Needless to say, I put it back together and once again it is sitting back in the barn.
I was told maybe the stators were bad. I was under the impression, if both plugs were sparking well the stator was functioning appropriately. Again, I'm not a mechanic. I was also told may the electrical component located under the seat could cause similar problems. I'm at a loss. All I can say is for some reason the gas is not being ingnited in the left cylider and basically blowed out the left exhaust.
Has anyone else had this problem? Any help and suggestions would be greatly appreciated.
Dwayne
