2004-2005 Honda TRX450R Factory Sevice Manual, Page 113Get this manual
COOLING SYSTEM Fill th reserve tank to the upper level li ne and install th ank capInstall he right front fender (page 3-5)
THERMOSTAT
REMOVAL
Drain the coolant fro the system (page 7-7)Remove the three bolts and hermostat cover
Remo ve th thermostat from the cylinder head
INSPECTION
Visually inspect the thermostat for damageReplace the thermostat if the valve stays open at room temperatureWear insulated gloves and adequate eye protectionDo not let the