my son has a 2001 blaster he sheared a flywheel key now that we replaced it it doesent want to run .. it almost acts like its out of time . there are no marks on the fly wheel to verify top dead center . when i took it apart there was a wire that was pinched between the stater for the spark coil that shorted out . it has spark but acts like its fireing though the carb .is it posible to twist the crank and this be the cause of it being out of time . it did start a little bit but would not rev at all . now when trying to start it seems like there is smoke comming from the carb . is there a spot to line up the keyway with something and make sure it lines up with top dead center. thanks