im helpig my friend rebuild his blaster and today we put the motor back on the quad and i can shift through all the gears (tested by spinning wheels on jack because motor currently does not run) and the shifting lever works but when you click it down it sticks and has to be pulled up with your foot. all i know is we just got the cracked part around the shifter on the case welded and the shifting rod was bent and the guy says he bent it back. any ideas?