Man I was just up there last week, i could have helped. Take the plugs out, and I would remove the exhaust at the Y pipe, and pull it over until it cleans out. Well first remove the carbs and clean them. Once you have it clean, put it back together and run it. What sled is it on, I don't think straight gas will hurt the crank to bad. Be better if it was a pre mix sled, then it would be good. maxdlx
Didn't remember the sx viper part. get it running as soon as you can, and while running pull the oil cable adjment apart so it is wide open. it will smoke like he!!, but it will oil it up good. I almost pm'd you Sunday from menominee too
