Honda TRX500FGA Owner's Manual page 163

Maintenance Component Locations
engine oil filler cap
air cleaner
air cleaner
housing
drain tube
coolant reserve
tank
rear brakelight switch
throttle stop screw
(engine idle speed)
154 Servicing Your Honda
front suspension
spring pre-load adjuster
front brake caliper
rear brake pedal
engine oil filter
differential
oil filler cap
differential oil
drain bolt
dipstick