Yamaha 2007 R6 Service

							RADIATOR
6-2
13 Radiator bracket 1
For installation, reverse the removal proce-
dure.
Removing the radiator
Order Job/Parts to remove Q’ty Remarks
T R..5 Nm (0.5 m • 
kg, 3.6 ft • Ib)
T R..5 Nm (0.5 m • 
kg, 3.6 ft • Ib)
T R..10 Nm (1.0 m • 
kg, 7.2 ft • Ib)
T R..10 Nm (1.0 m • 
kg, 7.2 ft • Ib)
T R..10 Nm (1.0 m • 
kg, 7.2 ft • Ib)
T R..13 Nm (1.3 m • 
kg, 9.4 ft • Ib)
4
7 7
4
9 12 10 11
68 1
32
5
13(3) (3) 
						

							RADIATOR
6-3
EAS26390
CHECKING THE RADIATOR
1. 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.
2. Check:
•Radiator hoses
•Radiator pipes
Cracks/damage → Replace.
3. Measure:
•Radiator cap opening pressure
Below the specified pressure → Replace the 
radiator cap.



 
 
 








 
 



 
 



 
 







a. Install the radiator cap tester “1” and radiator 
cap tester adapter “2” to the radiator cap “3”.b. Apply the specified pressure for ten seconds 
and make sure there is no drop in pressure.
          
4. Check:
•Radiator fan
Damage → Replace.
Malfunction → Check and repair.
Refer to “COOLING SYSTEM” on page 8-29.
EAS26400
INSTALLING THE RADIATOR
1. Fill:
•Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on 
page 3-19.
2. Check:
•Cooling system
Leaks → Repair or replace any faulty part.
3. Measure:
•Radiator cap opening pressure
Below the specified pressure → Replace the 
radiator cap.
Refer to “CHECKING THE RADIATOR” on 
page 6-3.
 
Radiator cap opening pressure
107.9–137.3 kPa (15.6–19.9 psi) 
(1.08–1.37 kgf/cm²)
 
Radiator cap tester
90890-01325
Radiator pressure tester
YU-24460-01
Radiator cap tester adapter
90890-01352
Radiator pressure tester adapter
YU-33984 
						

							OIL COOLER
6-4
EAS26410
OIL COOLER
Removing the oil cooler
Order Job/Parts to remove Q’ty Remarks
Engine oilDrain.
Refer to “CHANGING THE ENGINE OIL” on 
page 3-11.
CoolantDrain.
Refer to “CHANGING THE COOLANT” on 
page 3-19.
Exhaust pipe assembly Refer to “ENGINE REMOVAL” on page 5-1.
1 Oil cooler outlet hose 1
2 Oil cooler inlet hose 1
3 Water jacket joint 1
4O-ring 1
5 Water jacket joint inlet hose 1
6 Water pump outlet pipe 1
7 Oil cooler union bolt 1
8Gasket 1
9 Oil cooler 1
T R..63 Nm (6.3 m • 
kg, 45 ft • Ib)T R..10 Nm (1.0 m • 
kg, 7.2 ft • Ib)
LT
New
New
LS
LS
4
3
5
6
2
7910
8 1
E
New 
						

							OIL COOLER
6-5
10 O-ring 1
For installation, reverse the removal proce-
dure.
Removing the oil cooler
Order Job/Parts to remove Q’ty Remarks
T R..63 Nm (6.3 m • 
kg, 45 ft • Ib)T R..10 Nm (1.0 m • 
kg, 7.2 ft • Ib)
LT
New
New
LS
LS
4
3
5
6
2
7910
8 1
E
New 
						

							OIL COOLER
6-6
EAS26420
CHECKING THE OIL COOLER
1. Check:
•Oil cooler
Cracks/damage → Replace.
2. Check:
•Oil cooler inlet hose
•Oil cooler outlet hose
•Water jacket joint hose
Cracks/damage/wear → Replace.
3. Check:
•Water jacket joint pipe
Damage → Replace.
Obstruction → Wash and blow out with com-
pressed air.
EAS26430
INSTALLING THE OIL COOLER
1. Clean:
•Mating surfaces of the oil cooler and the 
crankcase
(with a cloth dampened with lacquer thinner)
2. Install:
•O-ring 
•Oil cooler “1”
•Gasket “2” 
•Oil cooler union bolt “3”
NOTE:
•Before installing the oil cooler, lubricate the its 
union bolt with a thin coat of engine oil.
•Make sure the O-ring is positioned properly.
•Make sure the projection “a” on the oil cooler 
touches the projection “b” on the crankcase.
3. Fill:
•Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on 
page 3-19.•Crankcase
(with the specified amount of the recom-
mended engine oil)
Refer to “CHANGING THE ENGINE OIL” on 
page 3-11.
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.
T R.. 
Oil cooler union bolt
63 Nm (6.3 m·kg, 43 ft·lb)
New
New
b a 1
2 3 
						

							THERMOSTAT
6-7
EAS26440
THERMOSTAT
Removing the thermostat
Order Job/Parts to remove Q’ty Remarks
Air filter case Refer to “AIR FILTER CASE” on page 7-5.
Canister (for California only) Refer to “THROTTLE BODIES” on page 7-8.
CoolantDrain.
Refer to “CHANGING THE COOLANT” on 
page 3-19.
1 Coolant temperature sensor coupler 1 Disconnect.
2 Thermostat outlet hose 1
3 Thermostat cover 1
4 Thermostat 1
For installation, reverse the removal proce-
dure.
T R..12 Nm (1.2 m • 
kg, 8.7 ft • Ib)
3 4
2
1 
						

							THERMOSTAT
6-8
EAS26450
CHECKING THE THERMOSTAT
1. Check:
•Thermostat
Does not open at 71–85 °C (159.8–185.0 °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.
NOTE:
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.
EAS26480
INSTALLING THE THERMOSTAT
1. Install:
•Thermostat
NOTE:
Install the thermostat with its breather hole “a” 
facing up.
2. Fill:
•Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on 
page 3-19.
3. Check:
•Cooling system
Leaks → Repair or replace any faulty part.
4. 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 
						

							WATER PUMP
6-9
EAS26500
WATER PUMP
Removing the water pump
Order Job/Parts to remove Q’ty Remarks
It is not necessary to remove the water 
pump unless the coolant level is extremely 
low or the coolant contains engine oil.
Right bottom cowlingRefer to “GENERAL CHASSIS” on page 
4-1.
Air filter case Refer to “AIR FILTER CASE” on page 7-5.
Canister (for California only) Refer to “THROTTLE BODIES” on page 7-8.
CoolantDrain.
Refer to “CHANGING THE COOLANT” on 
page 3-19.
1 Clutch cable 1 Disconnect.
2 Water pump inlet hose 1
3 Water pump outlet hose 1
4 Water pump breather hose 1
5 Water pump assembly 1
For installation, reverse the removal proce-
dure.
T R..12 Nm (1.2 m • 
kg, 8.7 ft • Ib)
New
LS
LTLT
LTT R..12 Nm (1.2 m • 
kg, 8.7 ft • Ib)
T R..12 Nm (1.2 m • 
kg, 8.7 ft • Ib)53
2
14 
						

							WATER PUMP
6-10
EAS26540
CHECKING THE WATER PUMP
1. Check:
•Water pump assembly
Cracks/damage → Replace.
2. Check:
•Water pump inlet hose
•Water pump outlet hose
•Water pump breather hose
Cracks/damage/wear → Replace.
EAS26590
INSTALLING THE WATER PUMP
1. Install:
•Water pump assembly “1”
•O-ring “2” 
NOTE:
•Align the slit “a” on the impeller shaft with the 
projection “b” on the oil pump shaft.
•Lubricate the O-ring with a thin coat of lithium-
soap-based grease.
2. Fill:
•Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on 
page 3-19.
3. Check:
•Cooling system
Leaks → Repair or replace the faulty part.
4. Measure:
•Radiator cap opening pressure
Below the specified pressure → Replace the 
radiator cap.
Refer to “CHECKING THE RADIATOR” on 
page 6-3.
New 
						

							WATER PUMP
6-11