Yamaha XT660R S 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 XT660R S Specifications

General

Displacement	660 cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition System	TCI
Starter System	Electric
Transmission System	5-speed
Final Drive	Chain
Front Suspension System	Telescopic forks
Front Tyre	90/90-21 M/C 54S
Rear Tyre	130/80-17 M/C 65S
Overall Width	865 mm
Overall Height	1, 230 mm
Seat Height	865 mm
Wheelbase	1, 505 mm
Wet Weight	181 kg
Fuel Tank Capacity	15 litres
Oil Tank Capacity	2.9 litres
Engine Type	Liquid-cooled, 4-stroke, single cylinder, SOHC
Maximum Power	48hp (35kW) @ 6, 000rpm
Frame	Steel diamond
Rear Suspension System	Swingarm, (link suspension)
Front Brake	Single 298mm disc, 2-piston caliper
Rear Brake	Single Disc, 245 mm