I have a 1989 cr125 and i need to change the shift shaft and know the easiest way if possible?.....And also i was changing the clutch and put it all back in and my clutch handle was stiff and wont pull in the clutch i put it in first and it hopped about a foot and stalled so the clutch cable def didnt pull in..is there anything i could of lost i searched diagram and it says im missing a little steel ball right in the middle of the clutch basket the long rod that comes out fell out and when i put it back in i dont remember seeing any ball ? and i dont know if the ball whent in there or what?pls help.