Troubleshooting - Yamaha TW125 1999 Service Manual

EAS00781

TROUBLESHOOTING

Any of the following fail to light: head
light, high beam indicator light, taillight,
auxiliary light or meter light.
Check:
1. fuse
2. battery
3. main switch
4. lights switch
5. dimmer switch
6. wiring
(of the entire charging system)
NOTE:
S Before troubleshooting, remove the following
part(-s):
1) side covers (left and right)
2) seat
3) fuel tank
S Troubleshoot with the following special
tool(-s).
Pocket tester
90890-03112
EAS00738
1. Fuse
S Check the fuse for continuity.
Refer to "CHECKING THE FUSES" in chap-
ter 3.
S Is the fuse OK?
YES NO
Replace the fuse(-s).
LIGHTING SYSTEM
2. Battery
S Check the condition of the battery.
Refer to "CHECKING AND CHARGING THE
BATTERY" in chapter 3.
Specific gravity
1.280 at 20 _C
S Is the battery OK?
YES
EAS00749
3. Main switch
S Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the main switch OK?
YES
EAS00783
4. Lights switch
S Check the lights switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the lights switch OK?
YES
7-24
ELEC
NO
S Refill
the battery
fluid.
S Clean the battery
terminals.
S Recharge or
replace the battery.
NO
Replace the main
switch.
NO
The lights switch is
faulty. Replace the
right handlebar
switch.