2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 304Get this manual
REAR DRIVING MECHANISM Install new lock nut and tighten it using the special toolTOOL: Lock nut wrench, 30 64 mm LOCKNUT WRENCH
07916-MB00002
Refer to torque TORQUE: Actual: 98 Nm (10.0 kgfm, 72 Ibfft) wrench reading Indicated: 89 Nm (9.1 kgfm, 66 Ibfft) information on page 16-3 "Service Information"
Be careful not to damage the threads of the case
Stake the lock nut into the case groove
RING GEAR CLEARANCE INSPECTION
Install the ring gear with the left ring gear shim into the coverMeasure the clearance between the ring gear and the stop pin with feeler gaugeCLEARANCE: 0.300.60 mm (0.0120.024 in) RING GEAR