Yamaha YZF-R125 Service Manual: Checking the connections
Check the leads, couplers, and connectors for stains, rust, moisture, etc.
1. Disconnect:
- Lead
- Coupler
- Connector
2. Check:
- Lead
- Coupler
- Connector
Moisture → Dry with an air blower.
Rust/stains → Connect and disconnect several times.
3. Check:
- All connections
Loose connection → Connect properly.
NOTE:
If the pin "1" on the terminal is flattened, bend it up.
4. Connect:
- Lead
- Coupler
- Connector
NOTE:
Make sure all connections are tight.
5. Check:
- Continuity
(with the pocket tester)
NOTE:
If there is no continuity, clean the terminals.
When checking the wire harness, perform steps (1) to (3).
As a quick remedy, use a contact revitalizer available at most part stores.
Circlips
Before reassembly, check all circlips carefully
and replace damaged or distorted circlips. Always
replace piston pin clips after one use.
When installing a circlip "1", make sure the
sharp-edged ...
Special tools
The following special tools are necessary for complete and accurate tune-up
and assembly. Use only
the appropriate special tools as this will help prevent damage caused by the use
of inappropriat ...
Other materials:
Checking the clutch boss
1. Check:
Clutch boss splines
Damage/pitting/wear Replace the
clutch
boss.
NOTE:
Pitting on the clutch boss splines will cause erratic
clutch operation.
Checking the pressure plate
1. Check:
Pressure plate
Cracks/damage Replace.
Checking the clutch push lever and short clutch push ...
Changing the engine oil
1. Remove:
Right bottom cowling
Right upper side cowling
Right lower side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
2. Start the engine, warm it up for several minutes,
and then turn it off.
3. Place a container under the engine oil drain
bolt.
4. Install:
Engine oil d ...
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 they will cause the brake caliper
piston dust seal and piston seal to swell
and distort.
...