Fault Codes & Diagnostics

Diagnostic Guide

Search fault codes, diagnose symptoms, and find step-by-step repair procedures for all major motorcycle systems.

Fault Code Library

Full diagnosis details available with ProUpgrade →
Full diagnosis details available with ProUpgrade →
Full diagnosis details available with ProUpgrade →
Full diagnosis details available with ProUpgrade →

Symptom-Based Guides

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Engine Won't Start

  1. 01Check battery voltage (should be 12.6V+)
  2. 02Verify kill switch is in RUN position
  3. 03Check fuel level and fuel pump prime
  4. 04Test spark at plug
  5. 05Check for fault codes with diagnostic tool
⚙️

Rough Idle / Stalling

  1. 01Check idle speed setting (700–1100 RPM typical)
  2. 02Inspect air filter condition
  3. 03Check throttle body for carbon buildup
  4. 04Test idle air control valve
  5. 05Inspect vacuum lines for cracks
🌡️

Overheating

Full step-by-step guide available with Pro access.

🛑

Brake Fade / Soft Lever

Full step-by-step guide available with Pro access.

Full Fault Code Library

Pro subscribers get 850+ fault codes with complete diagnosis and repair procedures.