Yamaha XT660X Service Manual

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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 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