Yamaha XT660X Service Manual

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ELEC
CHAPTER 8
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS
........................................................................8-1
CHECKING SWITCH CONTINUITY
................................................................8-3
CHECKING THE SWITCHES
..........................................................................8-5
CHECKING THE BULBS AND BULB SOCKETS
..........................................8-7
TYPES OF BULBS ....................................................................................8-7
CHECKING THE CONDITION OF THE BULBS .......................................8-8
CHECKING THE CONDITION OF THE BULB SOCKETS .......................8-9
CHECKING THE LEDs..............................................................................8-9
IGNITION SYSTEM
.......................................................................................8-12
CIRCUIT DIAGRAM ................................................................................8-12
TROUBLESHOOTING ............................................................................8-13
ELECTRIC STARTING SYSTEM
..................................................................8-17
CIRCUIT DIAGRAM ................................................................................8-17
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION ........................8-18
TROUBLESHOOTING ............................................................................8-19
STARTER MOTOR
........................................................................................8-23
CHECKING THE STARTER MOTOR .....................................................8-25
ASSEMBLING THE STARTER MOTOR.................................................8-27
CHARGING SYSTEM
....................................................................................8-28
CIRCUIT DIAGRAM ................................................................................8-28
TROUBLESHOOTING ............................................................................8-29
LIGHTING SYSTEM
......................................................................................8-31
CIRCUIT DIAGRAM ................................................................................8-31
TROUBLESHOOTING ............................................................................8-32
CHECKING THE LIGHTING SYSTEM....................................................8-34
SIGNALING SYSTEM
...................................................................................8-37
CIRCUIT DIAGRAM ...............................................................................8-37
TROUBLESHOOTING ............................................................................8-39
CHECKING THE SIGNALING SYSTEM .................................................8-40
COOLING SYSTEM
.......................................................................................8-49
CIRCUIT DIAGRAM ................................................................................8-49
TROUBLESHOOTING ............................................................................8-50

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