2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 226Get this manual
CYLINDER HEADIVAlVECAMSHAFT Apply engine oil to he cap nut th reads and seating surfaces and install the fo llowing fasteners:
four washers and cap nuts th ree new ashe rs and seven bolls
Tig ht en the nuts and bolls in crisscross pattern in several stepsTORQUE: Cap nut:55 'm (5.6 kgfm, 41 Ibf-ft) Inst all the spark plug cap
If he cylinder andor cylinder hoed ere rem oved ,