A motorcycle starter relay is an electrical control unit. Its function is to connect the battery to the starter motor, enabling the engine to crank. Depending on the coil drive voltage, relays can be categorized as AC or DC types. Key benefits - Protects and controls electrical circuits by switching the starter and other connected systems - Improves reliability and steering of electrical operation, contributing to stable motorcycle performance - Enables coordinated control of multiple systems such as start, lights, ignition, and fuel pump for consistent operation Compatibility and use - Designed for Ducati M400, year 2002 - Part numbers: 27010-1075 and 27010-1314 Specifications - Material: copper and plastic with metal components - Weight: 120 g - Easy to install - Color: as shown in the image - Packaging: 1 piece 2-3 practical use scenarios - Scenario 1: Replace a faulty starter relay on a Ducati M400 2002 to restore reliable starting performance - Scenario 2: Use as a replacement or upgrade to ensure dependable operation of multiple motorcycle circuits such as starting, lighting, ignition, and fuel pump - Scenario 3: Keep as a spare part during maintenance to minimize downtime and maintain stable motorcycle operation