Radiator; Checking The Radiator; Installing The Radiator - Yamaha MBK XMAX 2014 Service Manual

EAS26390

CHECKING THE RADIATOR

1. Check:
• Radiator fins
Obstruction → Clean.
Apply compressed air to the rear of the radia-
tor.
Damage → Repair or replace.
TIP
Straighten any flattened fins with a thin, flathead
screwdriver.
2. Check:
• Radiator hoses
• Radiator filler hose
• Coolant reservoir hose
Cracks/damage → Replace.
3. Measure:
• Radiator cap opening pressure
Below the specified pressure → Replace the
radiator cap.
Radiator cap opening pressure
110.0–140.0 kPa (1.10–1.40
kgf/cm², 16.0–20.3 psi)
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a. Install the radiator cap tester "1" and radiator
cap tester adapter "2" to the radiator cap "3".
Radiator cap tester
90890-01325
Mityvac cooling system tester kit
YU-24460-A
Radiator cap tester adapter
90890-01352
Pressure tester adapter
YU-33984
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b. Apply the specified pressure for ten seconds
and make sure there is no drop in pressure.
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4. Check:
• Radiator fan
Damage → Replace.
Malfunction → Check and repair.
Refer to "COOLING SYSTEM" on page 8-33.
EAS26400

INSTALLING THE RADIATOR

1. Fill:
• Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to "CHANGING THE COOLANT" on
page 3-20.
2. Check:
• Cooling system
Leaks → Repair or replace any faulty part.
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a. Attach the radiator cap tester "1" to the radia-
tor.
▼▼▼
b. Apply 100 kPa (1.0 kg/cm², 14.22 psi) of pres-
sure.
c. Measure the pressure to check its maintain-
ing applied pressure.
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6-2

RADIATOR

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Radiator cap tester
90890-01325
Mityvac cooling system tester kit
YU-24460-A
1
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