Yamaha YZ450FA Automobile User Manual


 
3-8
ENGINE
Do not mix more than one type of ethylene
glycol antifreeze containing corrosion in-
hibitors for aluminum engine.
• Do not use water containing impurities or
oil.
Handling notes of coolant:
The coolant is harmful so it should be handled
with special care.
• When coolant splashes to your eye.
Thoroughly wash your eye with water and
see your doctor.
• When coolant splashes to your clothes.
Quickly wash it away with water and then
with soap.
• When coolant is swallowed.
Quickly make him vomit and take him to a
doctor.
7. Install:
•Radiator cap
Start the engine and warm it up for a several
minutes.
8. Check:
• Coolant level
Coolant level low Add coolant.
CHECKING THE RADIATOR CAP
1. Inspect:
• Seal (radiator cap) "1"
• Valve and valve seat "2"
Crack/damage Replace.
Exist fur deposits "3" Clean or replace.
CHECKING THE RADIATOR CAP OPENING
PRESSURE
1. Attach:
• Radiator cap tester "1" and adapter "2"
Apply water on the radiator cap seal.
3. Radiator cap
2. Apply the specified pressure.
3. Inspect:
•Pressure
Impossible to maintain the specified pres-
sure for 10 seconds Replace.
Radiator cap tester:
YU-24460-01/90890-01325
Radiator cap tester adapter:
YU-33984/90890-01352
Radiator cap opening pressure:
108–137 kPa (1.08–1.37 kg/cm
2
,
15.4–19.5 psi)