2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 163Get this manual
8CYLINDER
HEADVALVECAMSHAFT
SYSTEM COMPONENTS 8-2 SERVICE INFORMATION 8-3 TROUBLESHOOTING 8-5 CYLINDER COMPRESSION 8-6 CYLINDER HEAD COVER REMOVAL DISASSEMBLY 8-6 CYLINDER HEAD REMOVAL 8-8 CYLINDER HEAD DISASSEMBLY 8-9