Yamaha DT125RE 2005 Service Manual page 276

4. Lighting voltage.
• Turn (Dimmer) switch to "LO".
• Connect the pocket tester (DC 20 V) to the
battery.
Positive tester probe
Negative tester probe
• Connect the inductive tachometer to the
spark plug lead.
• Start the engine and check the lightning
voltage.
• Is the "LIGHTS" switch OK?
YES
Replace handlebar
switch (left).
Green terminal
Black terminal
NO
LIGHTING SYSTEM
EAS00787
5. Wiring
• Check the entire lighting system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the lighting system's wiring properly con-
nected and without defects?
YES
Check the condition
of each of the ligh-
ting system's cir-
cuits.
Refer to "CHEC-
KING THE LIGH-
TING SYSTEM".
8-19
ELEC
NO
Properly connect or
repair the lighting
system's wiring.