hi all, recently bought a 1993 kx250 and rode a couple times and has been good to me. I saw that the clutch cable was about to rip at the clutch lever so decide to replace it as well as the gear box oil, i used a basic tranny oil from a local dealer. so once i got both replaced i went to take outta garage, i usually put it in 1st gear ,hold down clutch and walk it outside while engine off and have had no problems. now when i try doin that the back tire seems to lock up and not go smoothly which i think is the clutch......also, i cant seem to start the bike in first gear as i did before....only in neutral..was i messin up to even start the bike in first gear????wut have i done to my bike?????