Gemini said
⚠️ Safety Warning: Always turn off the ignition before inspecting or replacing fuses. Never replace a blown fuse with one of a higher amperage rating, as this can lead to electrical fires or permanent damage to the wiring harness and ECU. If a fuse blows repeatedly, there is likely a short circuit that needs professional investigation.
Yamaha YZF-R125 Fuse Guide
The fuse system on the YZF-R125 protects the motorcycle's delicate electrical circuits from overloads. Knowing where these are located can save you from being stranded by a simple electrical glitch.
Fuse Box Locations
Main Fuse: Typically located near the starter relay, often found under the rider's seat or behind a side panel.
Auxiliary Fuse Box: Most generations house the secondary fuses (for lights, signals, and ignition) under the front seat or pillion seat area.
Common Fuse Types & Ratings
The YZF-R125 generally uses standard Mini Blade Fuses. Common ratings include:
15A (Blue): Often used for the main circuit and fuel injection system.
10A (Red): Typically protects the headlights, signaling system, and ignition.
7.5A (Brown): Used for lower-power circuits like the dashboard/instrument cluster.
30A (Green): Usually reserved for the Main fuse or ABS system (on newer models).
Troubleshooting
Check for Continuity: Look for a broken metal strip inside the plastic housing of the fuse.
Spare Fuses: Most R125 fuse box covers contain one or two spare fuses and a plastic puller tool.
The "Click" Test: If you have no power when turning the key, the Main 15A/20A fuse is the first thing to check.
Shop Fuses & Electrical Tools
Spare Fuse Kits:
Buy Mini Blade Fuse Kits on eBay UK Electrical Testers:
Circuit Testers & Multimeters on eBay UK
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