Yamaha XT660R S Service Manual

5 - 32
ENG
CYLINDER AND PISTON
EAS00251
CYLINDER AND PISTON
UP
1
E
E
E
New
New
New
New
New
New
New
New
LS
E
T
R
.
.
1st 15 Nm (1.5 m
•
kg, 11 ft
•
lb)
2nd 50 Nm (5.0 m
•
kg, 36 ft
•
lb)
T
R
.
.
10 Nm (1.0 m
•
kg, 7.2 ft
•
Ib)
T
R
.
.
10 Nm (1.0 m
•
kg, 7.2 ft
•
Ib)
2
3
4
5
7
7
9
8
6
6
10
11
12
Order Job/Part Q’ty Remarks
Removing the cylinder and piston
Remove the parts in the order listed.
Cylinder head Refer to “CYLINDER HEAD”.
1 Timing chain guide (exhaust) 1
2 Water jacket joint 1
3 O-ring 1
4 Cylinder 1
Refer to “INSTALLING THE PISTON
AND CYLINDER”.
5 Cylinder gasket 1
6 Dowel pin 2
7 Piston pin clip 2
Refer to “REMOVING THE CYLINDER
AND PISTON” and “INSTALLING THE
PISTON AND CYLINDER”.
8 Piston pin 1
9Piston 1
10 Top ring 1

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