Suzuki Burgman 125 Wiring Diagram [updated] Jun 2026

In this in-depth guide, we will break down the intricacies of the Burgman 125 electrical system, explain how to read the diagram, and walk you through the most common issues you can solve with this knowledge.

The is not just a technical drawing – it’s a roadmap to restoring your scooter’s electrical health. Whether you’re chasing a parasitic drain, installing a USB charger, or resurrecting a Burgman that’s been parked for years, the diagram saves time, money, and frustration.

| Function | Wire Color | Common Location | | :--- | :--- | :--- | | | Red | Main Fuse, Starter Relay | | Battery Negative (Ground) | Black/White (or Black) | Frame, Engine Case | | Ignition ON (12v) | Orange | Main Switch output to fuse box | | Starter Button Signal | Yellow/Green | Handlebar switch to Starter Relay | | Starter Relay Trigger | Green/Yellow | Relay coil to Brake Light switch | | Brake Light (Power) | Red/Black | Brake lever switches | | Brake Light (Bulb) | White/Black | Rear tail light | | Turn Signal (Left) | Light Green | Flasher relay to bulb | | Turn Signal (Right) | Black | Flasher relay to bulb | | Charging (Stator) | 3x Yellow | Magneto to Regulator/Rectifier | | Pickup Coil (Trigger) | Blue/Yellow & Blue/White | Magneto to CDI | | CDI Ignition Power | Black/White (AC) or Orange (DC) | To CDI unit | | Fuel Sender | Yellow/Blue | Fuel pump/gauge unit | suzuki burgman 125 wiring diagram

Let’s apply the wiring diagram to real-world Burgman 125 faults.

Simple but critical: Brake lever switches (normally open) send 12V from the battery (via R/W) to the wire, which illuminates the tail/brake LED or bulb. In this in-depth guide, we will break down

Let’s walk through the key circuits as they appear on a typical diagram.

section with comprehensive wiring diagrams for models from 2007–2010 and beyond. Key Electrical Components | Function | Wire Color | Common Location

Suzuki used a . If your battery keeps dying, measure the 3x Yellow wires coming from the magneto. You should see ~20-40V AC (idle) and ~60V AC (revving). If you see 0V on any yellow wire, the stator is fried.

Have a wiring question specific to your Burgman 125 model year? Leave a comment below or join the BurgmanUSA forum – the community is always happy to help trace a circuit.

Switched power (live only when the key is "ON"). Gray (G): Instrument panel illumination or tail lights.