1999 YAMAHA YZF-R7 coolant

ENG

4 - 3
ENGINE
T R..20 Nm (2.0 m • kg, 14 ft • Ib)
T R..20 Nm (2.0 m • kg, 14 ft • Ib)
T R..24 Nm (2.4 m • kg, 17 ft • Ib)
T R..10 Nm (1.0 m • kg, 7.2 ft • Ib)
T R..20 Nm (2.0 m • kg, 14 ft • Ib)
1
2
25654
3(8)
7New
T R..38 Nm (3.8 m • kg, 27 ft • Ib)
T R..28 Nm (2.8 m • kg, 20 ft • Ib)

Order Job/Part Q’ty Remarks
Removing the exhaust assembly
Remove the parts in the order listed.
Rear cowling Refer to “COWLINGS” in chapter 3.
Coolant Drain.
Refer to “CHANGING THE COOLANT”
in chapter 3.
Radiator assembly Refer to “RADIATOR AND THERMO-
STAT” in chapter 5.
1 Muffler 1
2 Spring 4
3 Exhaust pipe assembly 1
4 Exhaust pipe joint 1 1
5 Exhaust pipe joint 2 2
6 Exhaust pipe joint 4 1
7 Exhaust pipe joint gasket 4
For installation, reverse the removal
procedure.

ENG
4 - 50
OIL PAN AND OIL PUMP
EB411000
OIL PAN AND OIL PUMP
Order Job/Part Q’ty Remarks
Removing the oil pan and oil pumpRemove the parts in the order listed.
Engine oil Drain.
Refer to “CHANGING THE ENGINE
OIL” in chapter 3.
Coolant Drain.
Refer to “CHANGING THE COOLANT”
in chapter 3.
Radiator assembly and water pump
outlet pipeRefer to “RADIATOR AND THERMO-
STAT” and “OIL COOLER” in chapter 5.
Exhaust pipe assembly Refer to “ENGINE”.
1 Oil level switch connector 1 Disconnect.
2 Oil level switch 1
3 Oil level switch lead holder 1
4 Oil pan 1
5 Oil pan gasket 1
6 Dowel pin 2

5 - 1
COOL

RADIATOR AND THERMOSTAT
EB500000
COOLING SYSTEM
RADIATOR AND THERMOSTAT
Order Job/Part Q’ty Remarks
Removing the radiator
Remove the parts in the order listed.
Bottom cowling and front cowling Refer to “COWLINGS” in chapter 3.
Coolant Drain.
Refer to “CHANGING THE COOLANT”
in chapter 3.
1 Coolant reservoir breather hose 1
2 Coolant reservoir hose 1
3 Coolant reservoir 1
4 Thermo switch 1
5 Thermostat assembly breather hose 1 Disconnect.
6 Water pump inlet pipe 1
7 Water pump breather hose 1
8 Radiator outlet pipe breather hose 1
9 Water pump inlet hose 1
10 Radiator outlet pipe 1
5

5 - 3
COOL

EB502000
RADIATOR AND THERMOSTAT
Order Job/Part Q’ty Remarks
Removing the thermostat assembly
Remove the parts in the order listed.
Rider seat and fuel tank Refer to “SEATS” and “FUEL TANK” in
chapter 3.
Air filter case and rubber cover Refer to “AIR FILTER CASE AND IGNI-
TION COIL PLATE” in chapter 3.
Carburetor assembly Refer to “CARBURETORS” in chapter 6.
Coolant Drain.
Refer to “CHANGING THE COOLANT”
in chapter 3.
Fuel tank and air filter case cover Refer to “FUEL TANK AND AIR FIL-
TER” in chapter 3.
Air filter case Refer to “ELECTRONIC FUEL INJEC-
TION” in chapter 6.
1 Thermostat assembly 1
2 Thermostat assembly inlet hose 1
RADIATOR AND THERMOSTAT

5 - 4
COOL

RADIATOR AND THERMOSTAT
Order Job/Part Q’ty Remarks
3 Thermostat assembly breather hose 1
4 Coolant temperature sensor 1
5 Copper washer 1
6 Plastic band 1
7 Thermostat assembly inlet pipe 1
For installation, reverse the removal
procedure.

5 - 8
COOL

RADIATOR AND THERMOSTAT
INSTALLING THE THERMOSTAT
ASSEMBLY AND RADIATOR
1. Fill:
• cooling system
(with the specified amount of the rec-
ommended coolant)
Refer to “CHANGING THE COOLANT”
in chapter 3.
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”.

5 - 11
COOLOIL COOLER
3. Fill:
• cooling system
(with the specified amount of the rec-
ommended coolant)
Refer to “CHANGING THE COOLANT”
in chapter 3.
• crankcase
(with the specified amount of the rec-
ommended engine oil)
Refer to “CHANGING THE ENGINE
OIL” in chapter 3.
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”.

5 - 12
COOLWATER PUMP
EB503000
WATER PUMP
Order Job/Part Q’ty Remarks
Removing the impeller shaftRemove the parts in the order listed.
Oil/water pump assembly and oil
pump rotorRefer to “OIL PAN AND OIL PUMP” in
chapter 4.
1 Water pump cover 1
2 O-ring 1
3 Pin 2
4 Impeller shaft (along with the impel-
ler)1
NOTE:
• The water pump and oil pump are
combined into one unit (oil/water
pump assembly).
• It is not necessary to remove the
impeller shaft unless the coolant
level is extremely low or coolant
leaks from the oil pan.