Yamaha Scorpio, Service Manual

Page: 237 / 300

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ELEC
LIGHTING SYSTEM
TROUBLESHOOTING
Procedure
Check;
1.Lighting coil resistance
2.Lights switch
3.Dimmer switch
4.Pass switch
5.Wiring connection (entire lighting system)
NOTE:
●
Remove the following parts before troubleshooting.
1)Side cover (right)
2)Headlight unit
3)Seat
●
Use the following special tool (s) in this troubleshooting.
HEADLIGHT, HIGH BEAM INDICATOR LIGHT, TAILLIGHT AND/OR METER LIGHT DO NOT
COME ON.
Pocket tester:
90890-03112
1.Lighting coil resistance
●
Disconnect the CDI magneto coupler from
the wire harness.
●
Connect the pocket tester (
Ω ×
1) to the
stator coil.
Tester (+) lead
→
Yellow
1
terminal
Tester (–) lead
→
Black
2
terminal
MEETS
SPECIFICATION
●
Measure the lighting coil resistance.
Lighting coil resistance.
0.24 ~ 0.36
Ω
at 20°C
(Yellow - Black)
OUT OF SPECIFICATION
Replace stator assembly.
CORRECT
2.Lights switch
●
Check the lights switch for continuity.
Refer to the “CHECKING THE
SWITCHES” section.
*
INCORRECT
Lights switch is faulty, replace handlebar
switch (right).