Triumph not charging: regulator/rectifier and connectors
Partager
Applies to: Triumph Speed Triple, Sprint ST and other Hinckley triples
Symptoms
- Battery warning light or low voltmeter reading
- Battery dead after a ride
- Burnt smell or discolored plug near the regulator
Why it happens
The regulator/rectifier runs hot and fails, and its connectors overheat and burn, cutting charging.
How to fix it
- Check charging voltage at about 4000 rpm.
- Inspect the regulator and stator connectors for heat damage.
- Test stator AC output and resistance per the manual.
- Replace the regulator and repair burnt connectors.
Tools and parts
- Multimeter
- Regulator/rectifier
- Connector kit
What the factory service manual covers
Charging system: stator and regulator tests, wiring diagram. The full procedure, specs and wiring diagrams are in the factory service manual for your machine.