Had to replace all my motor mounts after putting motor back on bike it will not run now. It's getting file and I have good comparison and everything the spark plug has spay. I need help.
Try what crass is says remove sparkplug and turn engine for a bit , if not that check tightness of everything after being removed drilled etc things can loosen
when the 3 essentials are there sometimes you need a long push start or try starting it downhill.
then once it's running you can get a better idea of what's wrong (too lean from an air leak or obstruction in the jet, too rich from faulty float bowl valve or air filter clogged, or if its popping then there's bad sealing at head/cylinder juncture)