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...

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,...

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”...

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...

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...

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...

WATER PUMP
6-11