I have a 93 Yamaha banshee. Been on this form before but have new questions everything is brand new electrical rebuilt motor used carburetors but clean aftermarket FMF exhaust your fuel tank you name it. Can’t get it to fire. New stator new fly wheel. Can’t get it started on starter fluid. Is there a power valve in the 93 Yamaha banshee motor. Or is there a way to timing my timing may be off just does not want to start it tries to but it won’t. Have strong spark