Yamaha YZF-R125 Service Manual: Specifications
General specifications
- Engine specifications
- Chassis specifications
- Electrical specifications
- Tightening torques
- Lubrication points and lubricant types
- Lubrication system chart and diagrams
- Cooling system diagrams
- Cable routing
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:
Self-diagnostic function table
If the ECU detects an abnormal signal from a sensor while the vehicle is
being driven, the ECU illuminates
the engine trouble warning light and provides the engine with alternate
operating instructions that
are appropriate for the type of malfunction.
When an abnormal signal is received fro ...
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 co ...
Checking the stator coil
1. Disconnect:
Stator coil coupler
(from the wire harness)
2. Check:
Stator coil resistance
Out of specification → Replace the
crankshaft
position sensor/stator assembly.
a. Connect the pocket tester ( ×
1) to the stator
coil coupler as shown.
b. Measure the sta ...