2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 259Get this manual
CRANKSHAFTAUTOMATIC TRANSMISSION Loosen the five rear crankcase bolts in crisscross pattern in several steps and remove themREAR CRANKCASE
BOLTS Loosen the twelve front crankcase bolts in crisscross pattern in several steps and remove themPlace the crankcase assembly with the rear crankcase down
FRONT CRANKCASE
Be careful not to interfere the front crankcase with the automatic transmission unitDo not pry the crankcase apart with screwdriver