My son has a KTM 65sx, the shift lever started coming off back on Wensday 8-16-06. Put it back on, in about 5min riding again it came off again :yell: Thursday he got in 15min befor it came off this time :bang: I did'nt put it back on. I order a new one on Friday, it will be next week befor it comes in. He wanting to ride this weekend and race sunday at a local track. If I put it back on again is it going to start damageing the shifting shaft?