i have an old arcticat lynx 340 that won't run. my buddy was riding it and it was running great. he was putting in the barn and it popped through the carb and now it won't start.it had been sitting for three years so we went through the entire fuel system before even starting it the first time. it has great spark and gas to the plugs. one cylender is a little dry but should run. it won't even fire on starting fluid. any ideas? i am stumped. i have worked on these since i was a little kid and consider myself fairly good at it. but i don't know about this one. i am leaning toward timing.