2006 Honda TRX680 Rincon Factory Service Manual, Page 194Get this manual
ENGINE REMOVALINSTALLATION Disconnect the EOT sensor 2P (Black) connector
2P (BLACK) CONNECTOR Remove the terminal cap, terminal nut and starter motor cable from the starter motor terminalRemove the each bolt and then remove the each ground cable from the engine and frameMOTOR CABLE GROUND CABLE
Release the gearshift switch wire from the wire clampRemove the gearshift arm pinch bolt and then remove the arm from the gearshift spindleRemove the two holder bolts and gear selector cable