If the charging circuit does not operate correctly, the following basic checks must be carried out before further diagnosis is performed:
- Check the battery terminals are clean and tight.
- Check the frame and engine earth connections are clean, tight and free from corrosion.
- Ensure the battery is fully charged and in good condition.
- Check that any fuse in the circuit is not blown and is of the correct rating.
Rectify any defects as necessary.
Diagnosis – charging circuit
![](https://motoinstruction.ru/img/triumph/15/121948.jpg)