Radiator Cap Inspection - Yamaha WR450F(R) Owner's Service Manual

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RADIATOR CAP OPENING PRESSURE INSPECTION

RADIATOR CAP INSPECTION/

12. Install:
G
13. Start the engine and let it warm up for
several minutes.
14. Turn off the engine and inspect the cool-
ant level.
Refer to "COOLANT LEVEL INSPEC-
TION" section.
NOTE:
Before checking the coolant level wait a few
minutes until the coolant settles.
EC355000
RADIATOR CAP INSPECTION
1. Inspect:
G
G
EC356001
RADIATOR CAP OPENING PRESSURE
INSPECTION
1. Attach:
G
NOTE:
Apply water on the radiator cap seal.
3 Radiator cap
2. Apply the specified pressure.
3 - 8
INSP
ADJ
Coolant reservoir cap
Seal (radiator cap) 1
Valve and valve seat 2
Crack/damage → Replace.
Exist fur deposits 3 → Clean or
replace.
Radiator cap tester 1 and adapter 2
Radiator cap tester:
YU-24460-01/90890-01325
Adapter:
YU-33984/90890-01352
Radiator cap opening pressure:
110 kPa (1.1 kg/cm
2
, 15.6 psi)

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