Yamaha XT660R S Service Manual

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EAS00834
SELF-DIAGNOSIS
The XT660R/XT660X features a self-diagnosing system for the following circuit:
• Fuel sender (thermistor)
If the circuit is defective, the condition code will be displayed on the fuel level warning light when the
main switch is set to “ON” (irrespective of whether the engine is running or not).
*
1
Condition code
Fuel level warning light
Circuit Defect(-s) System response Condition code
Fuel pump ther-
mistor
• Open circuit
• Short circuit
• The fuel warning light
indicate the condition
code.
Refer to *
1
SELF-DIAGNOSIS

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