Yamaha XT660R S Service Manual

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CHK
ADJ
ADJUSTING THE REAR BRAKE PEDAL/
CHECKING THE BRAKE FLUID LEVEL
3. Adjust:
• rear brake light switch
Refer to “ADJUSTING THE REAR BRAKE
LIGHT SWITCH”.
EAS00115
CHECKING THE BRAKE FLUID LEVEL
1. Stand the motorcycle on a level surface.
NOTE:
_
• Place the motorcycle on a suitable stand.
• Make sure the motorcycle is upright.
2. Check:
• brake fluid level
Below the minimum level mark a → Add
the recommended brake fluid to the proper
level.
È
Front brake
É
Rear brake
WARNING
_
• Use only the designated brake fluid.
Other brake fluids may cause the piston
seals to deteriorate, causing leakage and
poor brake performance.
• Refill with the same type of brake fluid
that is already in the system. Mixing
brake fluids may result in a harmful
chemical reaction, leading to poor brake
performance.
• When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor
lock.
CAUTION:
_
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
NOTE:
_
In order to ensure a correct reading of the
brake fluid level, make sure the top of the
brake fluid reservoir is horizontal.
Recommended brake fluid
DOT 4
È
É

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