5 - 3
COOL
RADIATOR AND COOLANT RESERVOIR
CHECKING THE RADIATOR
1. Check:
• radiator fins
Obstruction
→
Clean.
Apply compressed air to the rear of the radi-
ator.
Damage
→
Repair or replace.
NOTE:
Straighten any flattened fins with a thin, flat-
head screwdriver.
2. Check:
• radiator hoses
Cracks/damage
→
Replace.
3. Measure:
• radiator cap opening pressure
Below the specified pressure
→
Replace
the radiator cap.
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a. Install the radiator cap tester
1
and adapter
2
onto the radiator cap
3
.
b. Apply the specified pressure for ten sec-
onds and make sure that there is no drop in
pressure.
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4. Check:
• radiator fan
Damage
→
Replace.
Malfunction
→
Check and repair.
Refer to “COOLING SYSTEM” in chapter 9.
Radiator cap opening pressure
107.9 ~ 137.3 kPa
(1.079 ~ 1.373 kg/cm
2
,
15.35 ~ 19.53 psi)
Radiator cap tester
P/N. YU-24460-01, 90890-01325
Radiator cap tester adapter
P/N. YU-33984, 90890-01352
Summary of Contents for 2004 Rhino 660 YXR660FAS
Page 1: ...LIT 11616 17 23 5UG F8197 10 YXR660FAS SERVICE MANUAL ...
Page 6: ......
Page 40: ...2 11 SPEC ENGINE SPECIFICATIONS Cylinder head tightening sequence ...
Page 55: ...2 26 SPEC COOLANT FLOW DIAGRAMS 1 Coolant outlet hose 2 Radiator inlet pipe 2 1 ...
Page 383: ...9 31 ELEC LIGHTING SYSTEM ...
Page 418: ......
Page 419: ......
Page 420: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...