1. Disconnect:
- Lead
- Coupler
- Connector
2. Check:
- Lead
- Coupler
- Connector
Moisture → Dry with an air blower.
Rust/stains → Connect and disconnect several times.
![](https://motoinstruction.ru/img/yamaha/20/126203.jpg)
3. Check:
- All connections
Loose connection → Connect properly.
If the pin "1" on the terminal is flattened, bend it up.
![](https://motoinstruction.ru/img/yamaha/20/126202.jpg)
4. Connect:
- Lead
- Coupler
- Connector
Make sure all connections are tight.
5. Check:
- Continuity (with the pocket tester)
- 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.
![](https://motoinstruction.ru/img/yamaha/20/126201.jpg)