Motorcycle Motorbike Starter Relay Solenoid For 2GB-81940-00-00 YZ250FX YZ450FX YZ 250FX 450FX WR450F YZ250F YZ450F This starter relay solenoid is designed for use with specific motorcycle models including YZ250FX, YZ450FX, YZ250F, YZ450F, and WR450F.It replaces 2GB-81940-00-00 and functions as an electrical switch to engage the starter motor during engine ignition.The unit connects directly to the motorcycle's and starter system, activation of the engine start sequence.Built to match specifications, it integrates into the existing wiring harness and mounting configuration.Suitable for riders seeking a functional replacement for a worn or faulty relay, this solenoid supports standard of the electric start system.