Cooling System; Secondary Air Supply System (05 And 06 California Type, After 06) - Honda CRF450X 2005 Service Manual

MAINTENANCE
COOLING SYSTEM
Remove the fuel tank (page 3-8).
Remove the radiator grill (page 7-B),
Check the radiator air passages for clogging or dam-
age.
Straighten bent fins, and remove insects, mud or
other obstructions w ith compressed air or low
water pressu re.
Replace the radiator
if the ai
r flow is restricted over
more than 20% of the radiating surface.
Inspect the radiator hoses for cracks or deteriora-
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tion, and replace them if necessary.
Check the tightness of all water hose clamps (page
1-17).
SECONDARY AIR SUPPLY SYSTEM ('05
and '06 California type, After '06)
4-14
Remove the right radiator shroud (page 3-4).
Check the ai r supply and PAIR air suction hoses for
damage or loose connector.
Check the vacu um hose between the cylinder head
vacuum joint and PAIR control valve for deteriora-
tion, damage or loose connection.
Also check that the hose is not kinked or pinched.
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