Yamaha XT660X Service Manual

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CHK
ADJ
CHECKING THE FRONT FORK/ADJUSTING THE REAR
SHOCK ABSORBER ASSEMBLY
3. Hold the motorcycle upright and apply the
front brake.
4. Check:
• front fork operation
Push down hard on the handlebar several
times and check if the front fork rebounds
smoothly.
Rough movement → Repair.
Refer to “FRONT FORK” in chapter 4.
EAS00156
ADJUSTING THE REAR SHOCK
ABSORBER ASSEMBLY
WARNING
_
Securely support the motorcycle so that
there is no danger of it falling over.
Spring preload
CAUTION:
_
Never go beyond the maximum or mini-
mum adjustment positions.
1. Adjust:
• spring preload
▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼
a. Adjust the spring preload with the special
wrench provided in the owner’s tool kit.
b. Turn the adjusting ring 1 in direction a or
b.
c. Align the desired position on the adjusting
ring with the stopper 2.
▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲
Direction
a
Spring preload is
increased (suspension
is harder).
Direction
b
Spring preload is
decreased (suspension
is softer).
Adjusting positions
Minimum: 1
Standard: 2
Maximum: 5

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