1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 123Get this manual
CRANKCASECRANKSHAFTTRANSMISSION INSPECTION Check the shift fork and shaft or wear or damage Measure the 1.0of the shalt hole
SERVICE LIMIT: 13.04 mm to .S13 Inl
Measure the shift fork claw thickness
SERVICE LIMIT: .50 mm 10177 inJ
Measure the shih fork shaft 0.0
SERVICE LIMIT: 12.96 mm 10.510 inl
Inspect the shift drum right journal for scorin gscratchesor lack of lubrication
Check the shih drum grooves for damage
Check the ge81 dogs, dog holes and teeth for abnormal wear, or lack of lubricationMeasure the 1.0of each gear SERVICE LIMITSC1C2C3, CA M4 M5 idler