On some motorcycles, under certain assembly conditions, the electrical power supply cable to the starter motor may come into direct contact with the oil cooler return pipe. This could cause the insulation on the starter cable to degrade.
Electrical system
Triumph Speedmaster Electrical problems by year
0 complaints filed with NHTSA about the Triumph Speedmaster's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data