Honda 2009 CRF450X Owner's Manual & Competition Handbook page 54

Coolant
Cooling System Inspection
1. Check the cooling system for leaks (see the
Honda Shop Manual for troubleshooting of
leaks).
2. Check the water hoses (1) for cracks,
deterioration, and radiator hose clamp for
looseness.
3. Check the radiator mount for looseness.
4. Make sure the siphon hose (2) is connected
and not clogged.
5. Check the radiator fins for clogging.
6. Check the bleed hole (3) below the water
pump cover (4) for leakage. Check for signs
of seal leakage. A small amount of "weeping"
from the bleed hole is normal. See the Honda
Shop Manual or consult your Honda dealer for
replacing the water seal or the oil seal. Both
seals should be replaced at the same time.
48
Servicing Your Honda
HONDA O/M CRF450X (Eu) 3RMEY620 00X3R-MEY-6200
(1)
(2)
(1)
(4)
(1) water hoses
(2) siphon hose
(3) bleed hole
(4) water pump cover
Coolant Replacement
Refer to Safety Precautions on page 25.
Coolant should be replaced by your Honda
dealer, unless you have the proper tools and
service data and are mechanically qualified.
Refer to the Honda Shop Manual.
WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to
spray out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
To properly dispose of drained coolant, refer to
You & the Environment, page 151.
NOTICE
Improper disposal of drained fluids is harmful to
the environment.
(3)