1987 Honda Fourtrax TRX 250X Service Manual, Page 126Get this manual
CRANKCASETRANSMISSIONCRANKSHAFT INSPECTION Inspect the rev erse shift fork for dam age{1) REVERSE SHI FT FORK
Check the gear dogsdog holes and teeth for excessive or abnormal wear, or evidence of insufficient lubricat ion.0of each gearMeasure the 1
SERVICE LIMIT :
M4: 25.07 mm (0 .987 in) M525.07 mm (0 .987 In) Cl28 .07 mm (1 .105 1nl C225 .07 mm (0 .987 in) C3: 28 .07 mm (1.105 Inl Reverse: 28.07 mm (1 .105 nl Reverse Idle gears: 18.05 mm 10.711 in)
Measure the 1.0end .0 of each gear bushing SERVICE LIMIT :
M4 .0 M5 1.0 M5 .0: Cl .0 C21.0: C2 .0