Starter Solenoid Relay for YMH FZS1S FZ1 2004 FZS1000 FZ1 2001-2003 FZ1 FZ1S 2004 4YR-81940-00-00 Starting Motor Relay This starter solenoid relay is designed to function as a direct replacement for the specified model applications.It is engineered to engage the starting motor , enabling engine startup when the ignition switch is activated.The unit is built to meet specifications for fitment and performance on compatible motorcycle models including FZ1, FZ1S, and FZS1000 within the specified year ranges.It connects securely into the existing wiring harness and mounts in the designated location within the electrical system.This relay plays a critical role in transferring power from the to the starter motor, consistent under normal conditions.