Honda CRF450X 2017 Owner's Manual & Competition Handbook page 54

Cooling System Inspection
1. Check the cooling system for leaks (see the
Honda Service 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
Service Manual or consult your dealer for
replacing the water seal or the oil seal. Both
seals should be replaced at the same time.
17 CRF450X̲31MEY710.indb 49 17 CRF450X̲31MEY710.indb 49
(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 dealer, unless
you have the proper tools and service data and
are mechanically qualified. Refer to the Honda
Service Manual (page 174).
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)
Coolant
49
Servicing Your Honda
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