Is it at all possible to be 180 degrees out of time? My warrior has spark, fuel, and compression and the valves are set correctly. Put a new piston and rings in the bike and it will not start not even with a shot of starting fluid. Timing marks line up but I an getting some air back through the carb and wondered it it is 180 degrees off. Any help would be appreciated. Thanks.

 

Sure; it's just a chain that turns the cam. You can have it one tooth off or a 100 teeth off or anything inbetween.