Yamaha FX Nytro FX10X, Service Manual

Page: 540 / 859

6-3
COOL
RADIATOR
INSPECTION
1. Inspect:
• Radiator inlet hose
• Radiator outlet hose
• Coolant reservoir hose
Cracks/damage
→
Replace.
2. Check:
• Radiator fins
Obstruction
→
Clean.
Apply compressed air to the rear of the radia-
tor.
Damage
→
Repair or replace.
NOTE:
_
Straighten any flattened fins with a thin, flat-head
screwdriver.
3. Measure:
• Radiator cap opening pressure
Cap opens with a pressure below the speci-
fied pressure
→
Replace.
4. Check:
• Radiator fan
Damage
→
Replace.
Malfunction
→
Check and repair.
Refer to “COOLING SYSTEM” in CHAPTER
8.
Measurement steps:
• Attach the radiator cap tester
1
and radiator
cap tester adapter 2 to the radiator cap 3 .
• Apply the specified pressure for 10 seconds
and make sure there is no pressure drop.
Radiator cap opening pressure:
107.9 ~ 137.3 kPa
(1.08 ~ 1.37 kg/cm
2
, 15.3 ~ 19.5 psi)
Radiator cap tester:
90890-01325
Radiator pressure tester:
YU-24460-01
Radiator cap tester adapter:
90890-01352
Radiator pressure tester adapter:
YU-33984