1990 Kawasaki Bayou 300 4x4 ATV. It starts 98% of the time. The other 2% I am getting spark and fuel, but I can't get it to run. It doesn't matter if the engine is hot or cold. I replaced the coil, because before this it wouldn't start when the engine got hot, but would start after cooling down. Thank you, dealer

 

I would try a new spark plug (dont just clean your old one- and new one is only about $2.50), even if you are gettting spark. This engine can be temper-mental when it comes to plugs. There are 2 plugs which will work in this engine and I forget what the other one is but I would use a NGK DR8EA.