Yamaha XT660X Service Manual

6 - 14
COOL
WATER PUMP
EAS00478
INSTALLING THE WATER PUMP
1. Install:
• water pump outlet hose
1
• O-rings
• water pump outlet pipe
(to the water pump assembly)
• hose clamps
2
WARNING
_
Always use new O-rings.
NOTE:
_
• Install the water pump outlet hose so that it
contacts the projection
a
on the water jacket
joint.
• Before installing the water pump outlet pipe,
lubricate the O-rings with a thin coat of lith-
ium-soap-based grease.
2. Install:
• gasket
• water pump cover
• water pump assembly
3. Install:
• radiator outlet hose
1
• hose clamp
2
NOTE:
Install the radiator outlet hose
1
so that it con-
tacts the projection
a
on the water pump
cover.
4. Fill:
• cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” in
chapter 3.
5. Check:
• cooling system
Leaks
→
Repair or replace the faulty part.
6. Measure:
• radiator cap opening pressure
Below the specified pressure
→
Replace
the radiator cap.
Refer to “CHECKING THE RADIATOR”.
New
2
1
a
New
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
New
New
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
T
R
.
.
10 Nm (1.0 m · kg, 7.2 ft · lb)
a
1
2
New
New

Yamaha XT660X Specifications

General

Displacement	660cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition System	TCI
Transmission	5-speed
Final Drive	Chain
Rear Brake	Single disc, Ø 245 mm
Front Tyre	120/70 R17
Rear Tyre	160/60 R17
Maximum Power	48 HP (35.3 kW) @ 6, 000 rpm
Maximum Torque	58.4Nm (43.1lb-ft) @ 5, 250rpm
Front Suspension	Telescopic fork
Rear Suspension	Swingarm, (link suspension)
Fuel Tank Capacity	15 litres
Engine Type	Liquid-cooled, 4-stroke, single cylinder, SOHC, 4-valves