Yamaha YZF-R125 Service Manual: Checking the rear brake caliper
1. Check:
- Brake caliper piston "1"
Rust/scratches/wear
Replace the
brake caliper piston. - Brake caliper cylinder "2"
Scratches/wear
Replace the
brake caliper assembly. - Brake caliper body "3"
Cracks/damage
Replace the
brake caliper assembly. - Brake fluid delivery passages
(brake caliper body)Obstruction
Blow out with compressed air.Obstruction Blow out with compressed air.
| WARNING Whenever a brake caliper is disassembled, replace the brake caliper piston dust seals and piston seals. |
2. Check:
- Brake caliper bracket
Cracks/damage
Replace.
Disassembling the rear brake caliper
1. Remove:
Brake caliper piston "1"
Brake caliper piston dust seal "2"
Brake caliper piston seal "3"
a. Blow compressed air into the brake hose joint
opening "a" to force out the pisto ...
Assembling the rear brake caliper
WARNING
Before installation, all internal brake components
should be cleaned and lubricated
with clean or new brake fluid.
Never use solvents on internal brake components
as ...
Other materials:
Main switch/steering lock
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
ON
All electrical circuits are supplied with
power, the meter lighting, taillight, license
plate light and ...
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
Before refueling, turn off the engine
and be sure that no on ...
Checking and lubricating the brake and clutch levers
Brake lever
Brake lever
Clutch lever
Clutch lever
The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lubricated
if necessary.
Recommended lubricants:Brake lever:
Silicone grease
Clutch lever:
Lithium-soap ...