Yamaha XT660R S Service Manual

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CHAS
FRONT AND REAR BRAKES
EAS00588
DISASSEMBLING THE FRONT BRAKE
MASTER CYLINDER
NOTE:
_
Before disassembling the front brake master
cylinder, drain the brake fluid from the entire
brake system.
1. Disconnect:
• front brake light switch
1
NOTE:
Push the fastener to remove the front brake
light switch from the brake master cylinder.
2. Remove:
• union bolt
1
• copper washers
2
• brake hose
3
NOTE:
_
To collect any remaining brake fluid, place a
container under the master cylinder and the
end of the brake hose.
3
1
2
EAS00589
DISASSEMBLING THE REAR BRAKE
MASTER CYLINDER
1. Remove:
• union bolt
1
• copper washers
2
• brake hose
3
NOTE:
_
To collect any remaining brake fluid, place a
container under the master cylinder and the
end of the brake hose.
2. Remove:
• right side heel plate
3
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