Yamaha XT660R Service Manual

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CHK
ADJ
ADJUSTING THE SHIFT PEDAL/
ADJUSTING THE DRIVE CHAIN SLACK
2. Adjust:
• shift pedal position
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a. Remove the bolt 1.
b. Remove the shift pedal 2.
c. Install the shift pedal at the correct position.
d. Install the bolt, and then tighten it to the
specified torque.
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T
R
.
.
Shift pedal bolt
16 Nm (1.6 m · kg, 11 ft · lb)
1
2
EAS00140
ADJUSTING THE DRIVE CHAIN SLACK
NOTE:
_
The drive chain slack must be checked at the
tightest point on the chain.
CAUTION:
_
A drive chain that is too tight will overload
the engine and other vital parts, and one
that is too loose can skip and damage the
swingarm or cause an accident. Therefore,
keep the drive chain slack within the speci-
fied limits.
1. Stand the motorcycle on a level surface.
WARNING
_
Securely support the motorcycle so that
there is no danger of it falling over.
NOTE:
_
Place the motorcycle on a suitable stand so
that the rear wheel is elevated.
2. Spin the rear wheel several times and find
the tightest position of the drive chain.

Yamaha XT660R Specifications

General

Displacement	660cc
Bore x Stroke	100.0 mm x 84.0 mm
Compression Ratio	10.0:1
Fuel System	Electronic Fuel Injection
Ignition System	TCI
Starter System	Electric
Transmission	5-speed
Final Drive	Chain
Rear Suspension	Swingarm
Front Tire	90/90-21
Rear Tire	130/80-17
Length	2, 240 mm
Width	865 mm
Height	1, 230 mm
Seat Height	865 mm
Wet Weight	181 kg
Fuel Capacity	15 liters
Lubrication System	Dry sump
Engine Type	Liquid-cooled, 4-stroke, SOHC, 4-valve
Front Suspension	Telescopic fork
Front Brake	Single disc, 298 mm
Rear Brake	Single disc, 245 mm
Maximum Power	35 kW (48 PS) @ 6, 000 rpm
Maximum Torque	58 Nm @ 5, 250 rpm