If your Harley-Davidson Road King isn’t running the way it should, don’t guess — diagnose it properly. Our Professional Diagnostic Service identifies the root cause of mechanical or electrical issues, saving you time, money, and unnecessary repairs.

Whether you're dealing with unusual noises, performance loss, starting problems, or electrical faults, our experienced technicians will perform a thorough inspection and testing process to pinpoint the exact issue.

What’s Included in Diagnostic Service

Mechanical Diagnostics – $200.00

• Inspect engine performance and internal condition
• Check for oil leaks, abnormal noises, and vibration
• Evaluate fuel system and combustion performance
• Inspect drivetrain and moving components

Ideal for performance issues, engine noise, or power loss.

Electrical Diagnostics – $250.00

• Test battery, charging system, and stator output
• Inspect wiring, connections, and electrical components
• Diagnose lighting, ignition, and sensor-related issues
• Identify faults in switches, controls, and electronic systems

Best for starting issues, electrical failures, or intermittent faults.

Advanced Troubleshooting

• Use professional tools and hands-on inspection
• Identify root cause — not just symptoms
• Provide clear explanation of findings
• Recommend only necessary repairs

Helps avoid unnecessary parts replacement and guesswork.

Performance Check (If Needed)

• Evaluate idle and throttle response
• Test ride for real-world performance issues
• Confirm diagnosis under actual riding conditions

Ensures accurate and reliable results.

Why Get a Professional Diagnostic?

• Saves money by avoiding trial-and-error repairs
• Identifies issues early before they worsen
• Provides accurate repair recommendations
• Ensures your motorcycle is safe and reliable
• Gives you confidence before approving repairs

Service Charges

• Mechanical Diagnostics: $200.00
• Electrical Diagnostics: $250.00

Diagnostic Fee is Credited Toward Repairs
If you proceed with the recommended repair, your diagnostic cost will be applied to the final service invoice.

Common Issues We Diagnose

• Engine knocking or unusual sounds
• Hard starting or no-start condition
• Electrical problems or battery drain
• Poor throttle response or stalling
• Warning lights or inconsistent performance

Schedule Your Harley-Davidson Road King Diagnostic Service Today

Get your bike back to peak performance with confidence.

Accurate Diagnosis. Reliable Repairs. Harley-Davidson Road King Care by Motorhelmets.