My brother and I just completely gutted his four-wheeler. Whole new motor- crank, piston, timing chain, bearings, seals, gaskets. Got the frame powder coated, which means it was at bare frame. We got it all back together and and now it won't start, turns over and over but won't fire! Wiring was triple checked, timing was checked, has spark, gas is getting to the plug, has gas in the tank, gas was on! We are clueless an don't know what it would be! Anyone have any idea for me? Thanks!