2006 Honda TRX680 Rincon Factory Service Manual, Page 165Get this manual
FUEL SYSTEM (PGM-FI) Clean around the injector base with compressed air before removing the injector, and be sure that no debris is allowed to enter into the combustion chamberDisconnect the injector 2P (Gray) connectorRemove the injector holder boltsRelease the fuel feed hose from the hose guide2P (GRAY) CONNECTOR
Remove the injector from the fuel feed hoseRemove the O-ring and seal ring
SEAL RING R