Yamaha XT660R S Service Manual

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COOL
WATER PUMP
5. Check:
• water pump outlet pipe
• radiator outlet hose
• water jacket inlet housing
Cracks/damage/wear → Replace.
EAS00475
ASSEMBLING THE WATER PUMP
1. Install:
• oil seal 1
(into the water pump housing 2)
• bearing 3
NOTE:
_
• Before installing the oil seal, apply tap water
or coolant onto its outer surface.
• Install the oil seal with a socket that matches
its outside diameter.
New
2. Install:
• water pump seal 1
CAUTION:
_
Never lubricate the water pump seal sur-
face with oil or grease.
NOTE:
_
• Install the water pump seal with the special
tools.
• Before installing the water pump, apply
Yamaha bond No.1215 2 to the water pump
housing 3.
È
Push down.
Mechanical seal installer 4
90890-04132
Middle driven shaft bearing driver
5
90890-04058
Yamaha bond No.1215
90890-85505
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