Yamaha XT660X Service Manual

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CHK
ADJ
CHECKING THE FRONT AND REAR BRAKE PADS AND BRAKE PAD
PINS/ADJUSTING THE REAR BRAKE LIGHT SWITCH
EAS00118
CHECKING THE FRONT AND REAR BRAKE
PADS AND BRAKE PAD PINS
The following procedure applies to all of the
brake pads.
1. Operate the brake.
2. Check:
• front brake pads
XT660R
Wear indicator grooves
1
have almost dis-
appeared
→
Replace the brake pads as a
set.
XT660X
Wear limit
2
reached
→
Replace the brake
pads as a set.
Refer to “REPLACING THE FRONT
BRAKE PADS” in chapter 4.
3. Measure:
• rear brake pads
Wear limit
3
reached
→
Replace the brake
pads as a set.
Refer to “REPLACING THE REAR BRAKE
PADS” in chapter 4.
4. Check:
• brake pad pins
Damage/wear
→
Replace.
È
Front brake (XT660R)
É
Front brake (XT660X)
Ê
Rear brake (XT660R/XT660X)
Rear brake pad wear limit
1.0 mm (0.04 in)
È
É
3
Ê
EAS00128
ADJUSTING THE REAR BRAKE LIGHT
SWITCH
NOTE:
_
The rear brake light switch is operated by
movement of the brake pedal. The rear brake
light switch is properly adjusted when the
brake light comes on just before the braking
effect starts.

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