Yamaha YZ450F Owner's Service Manual page 276

HANDLING NOTE
EASB111295
EWA
WARNING
If coolant seems hot, do not remove the ra-
diator cap.
CHECKING THE RADIATOR
EASB111296
1. Check:
• Radiator fins "1"
Obstructions  Clean.
Apply compressed air to the rear of the radi-
ator.
Damage  Repair or replace.
TIP
Correct any flattened fins with a thin, flat-head
screwdriver.
2. Check:
• Radiator hoses
• Radiator pipes
Crack/damage  Replace.
6-3
RADIATOR