Yamaha XT660X Service Manual

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CHAS
FRONT AND REAR BRAKES
5. Check:
• brake hoses
Cracks/damage/wear → Replace.
EAS00598
ASSEMBLING AND INSTALLING THE
FRONT BRAKE MASTER CYLINDER
WARNING
_
• Before installation, all internal brake com-
ponents should be cleaned and lubricated
with clean or new brake fluid.
• Never use solvents on internal brake
components.
1. Install:
• brake master cylinder 1
• brake master cylinder holder
NOTE:
_
• Install the brake master cylinder holder with
the “UP” mark a facing up.
• Align the end of the brake master cylinder
holder with the punch mark b on the handle-
bar.
• First, tighten the upper bolt, then the lower
bolt.
2. Install:
• copper washers
• brake hose
• union bolt
WARNING
_
Proper brake hose routing is essential to
insure safe motorcycle operation. Refer to
“CABLE ROUTING” in chapter 2.
NOTE:
_
• Install the brake hose within the range
shown.
• Turn the handlebar to the left and right to
make sure the brake hose does not touch
other parts (e.g., wire harness, cables,
leads). Correct if necessary.
Recommended brake fluid
DOT 4
1
b
a
T
R
.
.
7 Nm (0.7 m · kg, 5.1 ft · lb)
New
T
R
.
.
30 Nm (3.0 m · kg, 22 ft · lb)
40˚±10˚

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