Yamaha XT660X 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 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