Inspection - Yamaha RS90GTZ Service Manual

HEAT EXCHANGER

INSPECTION

1. Inspect:
• Coolant reservoir
• Coolant recovery
(For RS90GTZ/RS90LTGTZ)
• Radiator
(For RS90GTZ/RS90LTGTZ)
• Hoses
• Heat exchangers
• Oil cooler
• Engine outlet pipe
Cracks/damage → Replace.
2. Inspect:
• Radiator fins (RS90GTZ/RS90LTGTZ)
Obstruction → Clean.
Apply compressed air to the rear of the
radiator.
Damage → Repair or replace.
TIP
Straighten any flattened fins with a thin, flat-
head screwdriver.
3. Measure:
• Coolant reservoir cap opening pressure
Cap opens with a pressure below the spec-
ified pressure → Replace.
Coolant reservoir cap opening
pressure:
93.3 ~ 122.7 kPa
(0.93 ~ 1.23 kgf/cm
13.5 ~ 17.8 psi)
4. Inspect:
• Radiator fan (RS90GTZ/RS90LTGTZ)
Damage → Replace.
Malfunction → Check and repair.
Refer to "COOLING SYSTEM" in CHAP-
TER 8.
6-6
COOL
2
,