Yamaha YZF-R125 Service Manual: Checking the fuses
The following procedure applies to all of the fuses.
| CAUTION: To avoid a short circuit, always turn the main switch to "OFF" when checking or replacing a fuse. |
1. Remove:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
- Fuse
a. Connect the pocket tester to the fuse and check the continuity.
Set the pocket tester selector to "
× 1".
b. If the pocket tester indicates " ", replace the fuse.
3. Replace:
- Blown fuse
a. Set the main switch to "OFF".
b. Install a new fuse of the correct amperage rating.
c. Set on the switches to verify if the electrical circuit is operational.
d. If the fuse immediately blows again, check
the electrical circuit
| WARNING Never use a fuse with an amperage rating other than that specified. Improvising or using a fuse with the wrong amperage rating may cause extensive damage to the electrical system, cause the lighting and ignition systems to malfunction and could possibly cause a fire. |
4. Install:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
Checking the condition of the bulb sockets
The following procedure applies to all of the bulb
sockets.
1. Check:
Bulb socket (for continuity)
(with the pocket tester)
No continuity Replace.
NOTE:
Check each bulb socket for continui ...
Checking and charging the battery
WARNINGBatteries generate explosive hydrogen gas
and contain electrolyte which is made of poisonous
and highly caustic sulfuric acid.
Therefore, always follow these preventive
mea ...
Other materials:
Checking the thermostat
1. Check:
Thermostat
Does not open at 80.5-83.5 C (176.9-182.3
F) Replace.
a. Suspend the thermostat "1" in a container "2"
filled with water.
b. Slowly heat the water "3".
c. Place a thermometer "4" in the water.
d. While stirring the water, observe the thermostat
and th ...
Installing the rear brake master cylinder
1. Install:
Copper washers "1"
Brake hose "2"
Rear brake light switch "3"
WARNINGProper brake hose routing is essential to
insure
safe vehicle operation. Refer to "CABLE
ROUTING" on page 2-33.
CAUTION:When installing the brake hose onto the
brake master ...
Adjusting the exhaust gas volume
NOTE:
Be sure to set the CO density level to standard,
and then adjust the exhaust gas volume.
1. Remove:
Rider seat
Refer to "GENERAL CHASSIS" on page 4-1.
2. Set the main switch to "OFF".
3. Disconnect:
Self-diagnosis signal connector "1"
4. Connect:
FI diagnostic tool "2 ...