Cooling System Service Information Troubleshooting; Cooling System Service Information Tools - Honda TRX450R Service Manual

COOLING SYSTEM
TOOLS
Driver
07749-0010000
Attachment, 28 x 30 mm
07946-1870100
Pilot, 12 mm
07746-0040200
Bearing remover set, 12 mm
07936-1660101
Bearing remover weight
07741-0010201
Oil seal driver
07945-KA30000
or 07936-166010A and 07936-
3710100 (U.S.A. only)
or 07936-371020A or 07936-3710200
(U.S.A. only)
or 07965-415000A (U.S.A. only)
TROUBLESHOOTING
Engine temperature too high
• Thermostat stuck closed
• Faulty radiator cap
• Insufficient coolant
• Passage blocked in radiator, hoses or water jacket
• Air in system
• Faulty cooling fan motor
• Faulty cooling fan motor drive circuit ('04 - '05: page 20-23, After
'05: page 24-12)
• Faulty water pump
Coolant leaks
• Faulty water pump mechanical seal
• Deteriorated O-ring
• Faulty radiator cap
• Damaged or deteriorated cylinder head gasket
• Loose hose connection or clamp
• Damaged or deteriorated hose
9-4