2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 192Get this manual
CRANKCASEITRANSMISSIONCRANKSHAFT Measure the 1.0of each gear
SERVICE LIMITS: M4: 25.08 mm (0.987 in) M5: 25.06 mm (0.987 in) C123.07 mm (0.908 in) C2, C3, CR28.08 mm (1 .106 in) Reverse idle: 17.04 mm (0.671 in)
Check the bushings for abnormal wear or damageMeasure the gear bushing .0
SERVICE LIMITS: M4, M5: 24.90 mm (0.980 in) Cl: 22.90 mm (0.902 in) C2, C3CR: 27.94 mm (1 .100 in) Reverse id le: 16.94 (0.667)
Calculate the gear-to-bushing clearance
SERVICE LIMIT: 0.10 mm (0.004 in)
Measure the gear bushing t.O
SERVICE LIMITS: M4: 22.10 mm (0.870 in) Cl: 20.08 mm (0.791 in) C2CR: 25.06 mm (0.987 in) Reverse idle: 13.04 (0.513)