2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 108Get this manual
LUBRICATION SYSTEM Separate oil pump bodies and BRemove the outer, inner rotors A, drive pin and pump shaftClean the all disassembled parts thoroughlyPUMP SHAFT PUMP BODY A
PUMP BODY B
INNER AND OUTER ROTORS A
INSPECTION