2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 419Get this manual
BRAK SYSTEM Rotate the caliper piston clockwise using the special ool or equivalent to retract it and ali gn the piston groove with he ndex ark on the caliper body
INDEX MARK
TOOL: ock nut rench, 20
24 mm 07716-0020100
Ins tall he cali per body over the pads and caliper bracke t, aligning he groove in he pi sto ith the pin the pad Install the bracket pin bolt and bracke pin retain ing bolt, and tig hten the TORQUE:
Bracket pin bolt32 Nm (3.3 kgfm24 Ibf ttl