2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 204Get this manual
CRANKCASETRANSMISSIONCRANKSHAFT Measure the 1.0of each gear
SERVICE LIMITS: M4: 23.04 mm (0.907 in) M5:18.04 mm (0.710 in) C1, C2, C3, CR: 25.04 mm (0.986 in) Reverse idle: 13.04 mm (0.513 in)
Check the bushings for abnormal wear or damageMeasure the gear bushing .0
SERVICE LIMITS: M4: 22.94 mm (0.903 in) M5: 17.94 mm (0.706 in) C1, C2, C3, CR: 24.94 mm (0.982 in)
Calculate the gear-to-bushing clearance
SERVICE LIMIT: 0.10 mm (0.004 in)
Measure the gear bushing 1.0
SERVICE LIMITS: M4: 20.04 mm (0.789 in) M5: 15.04 mm (0.592 in) C3: 22.04 mm (0.868 in)