Yamaha XT660R S Service Manual

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CHK
ADJ
CHECKING AND ADJUSTING THE STEERING HEAD/
CHECKING THE FRONT FORK
d. Check the steering head for looseness or
binding by turning the front fork all the way
in both directions. If any binding is felt,
remove the lower bracket and check the
upper and lower bearings.
Refer to “STEERING HEAD” in chapter 4.
e. Install the rubber washer 2.
f. Install the upper ring nut 3.
g. Finger tighten the upper ring nut 3, and
then align the slots of both ring nuts. If nec-
essary, hold the lower ring nut and tighten
the upper ring nut until their slots are
aligned.
h. Install the lock washer 1.
NOTE:
_
Make sure the lock washer tabs a sit correctly
in the ring nut slots b.
▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲
7. Install:
• upper bracket
• washer
• steering stem
8. Tighten:
• upper bracket pinch bolts
9. Install:
• handlebar
• upper handlebar holders
• handlebar holder caps
• handlebar protector (XT660X)
• handlebar protector cover (XT660X)
Refer to “HANDLEBAR” in chapter 4.
EAS00149
CHECKING THE FRONT FORK
1. Stand the motorcycle on a level surface.
WARNING
_
Securely support the motorcycle so that
there is no danger of it falling over.
2. Check:
• inner tubes 1
Damage/scratches → Replace.
• oil seals 2
Oil leakage → Replace.
T
R
.
.
130 Nm (13.0 m · kg, 94 ft · lb)
T
R
.
.
23 Nm (2.3 m · kg, 17 ft · lb)
T
R
.
.
23 Nm (2.3 m · kg, 17 ft · lb)
1
2

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