Yamaha XT660X Service Manual

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ELEC
IMMOBILIZER SYSTEM
CHECKING THE IMMOBILIZER SYSTEM
1. Immobilizer system indicator light does not
go on when the main switch is set to “ON”.
YES
NO
YES
NO
YES
NO
1. Immobilizer system indicator light LED
• Check the LED of the immobilizer system
indicator light.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”.
• Is the immobilizer system indicator light
LED OK?
Replace the meter
assembly.
2. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly couplers as shown.
Positive tester probe
→
green/blue
1
Negative tester probe
→
black/white
2
• Set the main switch to “ON”.
• Measure the voltage (2.6 V) between
green/blue and black/white on the meter
assembly couplers.
• Is the voltage within specification?
Replace the meter
assembly.
3. Voltage
• Connect the pocket tester (DC 20 V) to the
immobilizer unit coupler as shown.
Positive tester probe
→
red/green
1
Negative tester probe
→
black
2
• Set the main switch to “ON”.
• Measure the voltage (12 V) between red/
green and black on the immobilizer unit
coupler.
• Is the voltage within specification?
The wiring circuit
from the battery to
the immobilizer unit
is faulty and must be
repaired.
B
BB
Y/LG/L
R/W
R/G
R/G
B2
R/W Lg Y/L
B
2
1

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