
6.5
6.6
WATER PUMP
THERMOSTAT
1. Check:
• Thermostat
Does not open at 80.5–83.5 °C (176.9–182.3
°F)
→
Replace.
a. Suspend the thermostat “1” in a container “2”
filled with water.
b. Slowly heat the water “3”.
c. Place a thermometer “4” in the water.
d. While stirring the water, observe the thermo-
stat and thermometer’s indicated tempera-
ture.
If the accuracy of the thermostat is in doubt, re-
place it. A faulty thermostat could cause serious
overheating or overcooling.
2. Check:
• Thermostat cover
Cracks/damage
→
Replace.
3. Check:
• Radiator inlet hose
Cracks/damage
→
Replace.
1. Install:
• Thermostat
Install the thermostat with its breather hole “a”
facing up.
2. Install:
• Copper washer
• Coolant temperature sensor
Use extreme care when handling the coolant
temperature sensor. Replace any part that
was dropped or subjected to a strong im-
pact.
3. Fill:
• Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on
page 3-14.
4. Check:
• Cooling system
Leaks
→
Repair or replace any faulty part.
5. Measure:
• Radiator cap opening pressure
Below the specified pressure
→
Replace the
radiator cap.
Refer to “CHECKING THE RADIATOR” on
page 6-3.
A. Fully closed
B. Fully open
95
203
82
±
1.5
(179.6
±
2.7
Coolant temperature sensor
18 Nm (1.8 m·kg, 13 ft·lb)
New
sssssssssssssssssssssssssss
sssssssssssssssssssssssssss
WATER PUMP
Removing the water pump
Order
Job/Parts to remove
Qty
Remarks
It is not necessary to remove the water
pump unless the coolant level is extremely
low or the coolant contains engine oil.
Left front panel
Refer to “GENERAL CHASSIS” on page
4-1.
Clutch cable (engine side)
Disconnect.
Refer to “CLUTCH” on page 5-37.
Coolant
Drain.
Refer to “CHANGING THE COOLANT” on
page 3-14.
1
Radiator outlet hose
1
2
Water pump breather hose
1
3
Cylinder head breather hose
1
Disconnect.
4
Radiator bracket bolt
1
5
Water pump assembly
1
For installation, reverse the removal proce-
dure.
New
New
2
5
3
1
4
T
R
.
.
10 Nm (1.0 m
•
kg, 7.2 ft Ib)
•
LS
LS
T
R
.
.
10 Nm (1.0 m
•
kg, 7.2 ft Ib)
•
Summary of Contents for YZF-R15
Page 1: ...2008 SERVICE MANUAL YZF R15 20P F8197 E0 ...
Page 33: ...2 14 ELECTRICAL SPECIFICATIONS Coil resistance 54 0 66 0 Fuse 20 0A Ω Fuse ...
Page 46: ...2 27 LUBRICATION POINTS AND LUBRICANT TYPES LUBRICATION DIAGRAMS A 1 2 3 4 5 6 7 ...
Page 48: ...2 29 LUBRICATION POINTS AND LUBRICANT TYPES 1 2 3 4 ...
Page 49: ...2 30 LUBRICATION POINTS AND LUBRICANT TYPES 1 Camshaft 2 Crankshaft 3 Main axle 4 Drive axle ...
Page 50: ...2 31 COOLING SYSTEM DIAGRAMS COOLING SYSTEM DIAGRAMS 1 2 3 4 1 5 7 6 4 ...
Page 52: ...2 33 CABLE ROUTING CABLE ROUTING 1 5 2 3 6 4 8 7 ...
Page 54: ...2 35 CABLE ROUTING A A B B C C A A C C B B A B C 1 2 3 4 5 4 5 6 6 7 8 9 10 11 10 11 12 12 ...
Page 56: ...2 37 CABLE ROUTING 1 2 5 4 3 ...
Page 60: ...2 41 CABLE ROUTING A A B C D E 1 2 3 4 5 6 7 8 9 10 A ...
Page 121: ...4 24 FRONT BRAKE Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 18 ...
Page 249: ...7 8 THROTTLE BODY ...
Page 250: ...7 9 AIR INDUCTION SYSTEM AIR INDUCTION SYSTEM 1 2 5 4 5 6 3 2 1 6 4 3 ...
Page 257: ......
Page 269: ...8 12 CHARGING SYSTEM 1 AC magneto 2 Rectifier regulator 3 Battery 42 Fuse ...
Page 271: ...8 14 CHARGING SYSTEM ...
Page 275: ...8 18 LIGHTING SYSTEM ...
Page 285: ...8 28 COOLING SYSTEM ...
Page 311: ...8 54 FUEL PUMP SYSTEM ...