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Yamaha XT660X Service Manual

Yamaha XT660X
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8 - 39
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ELEC
SIGNALING SYSTEM
EAS00794
TROUBLESHOOTING
Check:
1. main, ignition, signaling system, parking
lighting, and backup fuses
2. battery
3. main switch
4. wiring connections
(of the entire signaling 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
6. rear cover (left and right)
7. headlight assembly
Troubleshoot with the following special
tool(s).
EAS00738
YES
NO
EAS00739
YES
NO
EAS00749
YES
NO
EAS00795
YES
NO
Any of the following fail to come on: a
turn signal light, an indicator light, a
warning light, or the tail/brake light
The horn fails to sound.
Pocket tester
90890-03112
1. Main, ignition, signaling system, parking
lighting, and backup fuses
Check the main, ignition, signaling system,
parking lighting, and backup fuses for con-
tinuity.
Refer to CHECKING THE FUSES in
chapter 3.
Are the main, ignition, signaling system,
parking lighting, 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 (68 °F)
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 signal systems wiring.
Refer to CIRCUIT DIAGRAM.
Is the signaling systems wiring properly
connected and without defects?
Check the condition
of each of the signal-
ing systems circuits.
Refer to CHECK-
ING THE SIGNAL-
ING SYSTEM.
Properly connect or
repair the signaling
systems wiring.

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Yamaha XT660X Specifications

General IconGeneral
Displacement660cc
Bore x Stroke100.0 mm x 84.0 mm
Compression Ratio10.0:1
Fuel SystemFuel Injection
Ignition SystemTCI
Transmission5-speed
Final DriveChain
Rear BrakeSingle disc, Ø 245 mm
Front Tyre120/70 R17
Rear Tyre160/60 R17
Maximum Power48 HP (35.3 kW) @ 6, 000 rpm
Maximum Torque58.4Nm (43.1lb-ft) @ 5, 250rpm
Front SuspensionTelescopic fork
Rear SuspensionSwingarm, (link suspension)
Fuel Tank Capacity15 litres
Engine TypeLiquid-cooled, 4-stroke, single cylinder, SOHC, 4-valves

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