2006 Honda TRX680 Rincon Factory Service Manual, Page 252Get this manual
ALTERNATORSTARTER CLUTCH Install the starter driven gear while turning it clock_
INSTALLATION
Lubricate the needle bearing with molybdenum oil solutionInstall the washer and bearing onto the crankshaftInstall the woodruff key into the key grooveClean any oil from the tapered portion of the crankshaft and flywheel thoroughly