Yamaha XT660R S Service Manual

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ELEC
IMMOBILIZER SYSTEM
EAS00781
TROUBLESHOOTING
Check:
1. main, ignition, and backup fuses
2. battery
3. main switch
4. wiring
(of the entire immobilizer system)
NOTE:
• Before troubleshooting, remove the following
part(s).
1. seat
2. battery cover
3. side panels (left and right)
4. fuel tank side covers (left and right)
5. fuel tank
• Troubleshoot with the following special
tool(s).
EAS00738
YES
NO
EAS00739
YES
NO
EAS00749
YES
NO
EAS00787
YES
NO
The immobilizer system fails to operate.
(The immobilizer system indicator light
starts to flash in the self-diagnosis code
sequence.)
Pocket tester
90890-03112
1. Main, ignition, and backup fuses
• Check the main, ignition, and backup
fuses for continuity.
Refer to “CHECKING THE FUSES” in
chapter 3.
• Are the main, ignition, and backup fuses
OK?
Replace the fuse(s).
2. Battery
• Check the condition of the battery.
Refer to “CHECKING AND CHARGING
THE BATTERY” in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20 °C
• Is the battery OK?
• Clean the battery
terminals.
• Recharge or
replace the battery.
3. Main switch
• Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
• Is the main switch OK?
Replace the main
switch/immobilizer
unit.
4. Wiring
• Check the entire immobilizer system’s wir-
ing.
Refer to “CIRCUIT DIAGRAM”.
• Is the immobilizer system’s wiring properly
connected and without defects?
Check the condition
of each of the immo-
bilizer system’s cir-
cuits.
Refer to “CHECK-
ING THE IMMOBI-
LIZER SYSTEM”.
Properly connect or
repair the immobilizer
system’s wiring.

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