i was riding my banshee one day and it stopped shift, i couldnt shift down or upi wasstuckin 3rd the whole time, then i rode it home just b4 i got there it made a really loud noise.. i dunno what happened, i think the transmission went out itl move but it wont even got a MPH not sure whats wrong, help pls. i could post a video of whatit does if needed to take a guess what wrong reply please thanx.