2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 260Get this manual
CRANKCASE CRANKSHAFTBALANCER
CRANKCASE ASS EM BLY
Befo re install ing th ro nt cran kcase cove r, ake su re he gear sid su rfaces (C1 and gea rs) of th coun te rshaft and ai nshaft are lush
Clean he fro nt an rear crankcase matin surfaces th ro ug hly, bei ng care ul not damage th emBlow thro ugh the il passag es in he crank cases wi th co press ed air
Coat new O-rings with ngine oil nd install them
into he jo int co llar gr oovesInstall he il joint col lar into the rank case
Install he two dowel pins Inst all he bearin nner race onto he cr ankshaft with the flan ge side faci ng n