2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 150Get this manual
CLUTCHGEARSHIFT LINKAGE Apply engine oil to the lock nut threadsHold the drive late using the universal ho lder, tighten the lock nut using the special tools
TOOLS: Universal holder Lock nut wrench, 20 24 mm Extension bar
07725-0030000 07716-0020100 077160020500 or equivalent commerciallv avail able in U.S.A
TORQUE: 40 (4.1 kgfm30 Ibf.ft)
If one of the lock nut groove does not aligned with the lock washer tab, further tighten the lock nut and align the lock nul groove ith the lock asher tabBend the lock washer tab against the lock nu groove