Yamaha YZF-R125 Owners Manual: Replacing the fuses
Replacing the fuses
- Fuse box
- Spare fuse
- Headlight fuse
- Signaling system fuse
- Ignition fuse
- Radiator fan fuse
- Main fuse
The fuse box is located under the rider seat.
If a fuse is blown, replace it as follows.
- Turn the key to "OFF" and turn off the electrical circuit in question.
- Remove the blown fuse, and then install a new fuse of the specified amperage. WARNING! Do not use a fuse of a higher amperage rating than recommended to avoid causing extensive damage to the electrical system and possibly a fire.
| Specified fuses: Main fuse: 20.0 A Ignition fuse: 7.5 A Signaling system fuse: 7.5 A Headlight fuse: 15.0 A Radiator fan fuse: 5.0 A |
- Turn the key to "ON" and turn on the electrical circuit in question to check if the device operates.
- If the fuse immediately blows again, have a Yamaha dealer check the electrical system.
Battery
A poorly maintained battery will corrode
and discharge quickly. The electrolyte
level, battery lead connections and
breather hose routing should be
checked before each ride and at the interval ...
Replacing a headlight bulb
This model is equipped with quartz bulb
headlights. If a headlight bulb burns
out, have a Yamaha dealer replace it
and, if necessary, adjust the headlight
beam. ...
Other materials:
Checking the starter motor
1. Check:
Commutator
Dirt Clean with 600 grit
sandpaper.
2. Measure:
Commutator diameter "a"
Out of specification Replace
the starter
motor.
3. Measure:
Mica undercut "a"
Out of specification Scrape
the mica to the
proper measurement with a hacksaw blade
...
Air induction system
1. Air induction system hose (air filter case to
reed valve assembly)
2. Air induction system reed valve assembly
3. Air induction system hose (reed valve
assembly to exhaust pipe)
Checking the air induction system
Air injection
The air induction system burns unburned exhaust
gases b ...
Checking the cylinder head
1. Eliminate:
Combustion chamber carbon deposits
(with a rounded scraper)
NOTE:
Do not use a sharp instrument to avoid damaging
or scratching:
Spark plug bore threads
Valve seats
2. Check:
Cylinder head
Damage/scratches Replace.
Cylinder head water jacket
Min ...