Yamaha YZF-R125 Service Manual: Checking the front brake master cylinder
1. Check:
- Brake master cylinder
Damage/scratches/wear
Replace. - Brake fluid delivery passages
(brake master cylinder body)
Obstruction
Blow out with
compressed air.
2. Check:
- Brake master cylinder reservoir
Cracks/damage
Replace the brake
master cylinder. - Brake master cylinder reservoir diaphragm
Damage/wear
Replace.
3. Check:
- Brake hose
Cracks/damage/wear Replace.
Assembling the front brake master cylinder
WARNING
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Removing the front brake master cylinder
NOTE:
Before removing the front brake master cylinder,
drain the brake fluid from the entire brake system.
1. Disconnect:
Front brake light switch
2. Remove:
Brake hose union bolt
Copp ...
Installing the front brake master cylinder
1. Install:
Brake master cylinder "1"
Brake master cylinder holder "2"
NOTE:
Install the brake master cylinder holder with the
arrow mark "a" pointing forward.
Align the end of the br ...
Other materials:
Engine oil and oil filter element
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter element
replaced at the intervals specified
in the periodic maintenance and lubrication
chart.
To check the engine oil level
Place the vehicle on a level surface
and hol ...
Rider seat
To remove the rider seat
Insert the key into the seat lock,
and then turn it clockwise.
Seat lock
Open.
Pull the rider seat off.
To install the rider seat
1. Insert the projection on the front of
the rider seat into the seat holder
as shown.
Projection
...
Engine break-in
There is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the following
material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The vari ...