Precision Diagnostics for Every Motorcycle
Global Innovator in Motorcycle Diagnostics | 100+ Brands Covered | Empowering 30,000+ Professional Technicians
Our Mission
From the M100 to the M400, we've focused on one thing: redefining motorcycle repair standards through intelligent diagnostics. JDIAG was born for motorcycle maintenance--diagnosing battery health, EFI systems, and full-vehicle ECU data with pinpoint accuracy.
"We believe every motorcycle deserves a scientific diagnosis and professional-grade repair. Through continuous innovation, we are transforming the way the world maintains motorcycles."
— Mark, Founder, Jdiag
M400 Android Smart Diagnostic Platform
8" Industrial Tablet | Android OS | Expanded Database with 50+ Brands
Key Features
8" Industrial-Grade Android Tablet
Unmatched Global Coverage
Smart Repair Management
Extreme Durability
Core Product Lines | Always Evolving
From entry-level diagnostics to premium professional solutions, we have the perfect tool for every need.
Redefining Handheld Efficiency
3.5" Color Display | Real-Time Multilingual Support
Compatible with 16 major brands including Honda and Yamaha
M200 Series
Your Mobile All-in-One Expert
Built-in Thermal Printer | USB port / WIFI Upgrade| Injector Waveform Testing
4 exclusive injector cleaning modes for up to 60% more repair accuracy
Real-life example: Whether it's a weak battery in winter or TPS calibration, M200 brings transparency to the repair process
— Great for mid-size shops
M300 Series
Trusted by Professional Workshops
5" Industrial-Grade Display | Stable in -40℃ conditions
Supports high-end models like Harley and Ducati
6 European languages supported
Product Positioning & Specification Comparison
Find the perfect diagnostic tool for your specific needs and requirements
Spec/Feature
Screen Size
Battery Test
EFI System Test
Injector Cleaning
Waveform Analysis
Supported Brands
Operating Environment
Data Printing
Remote Upgrade
3.5"
16
Standard
28
Enhanced
5"
20
Industrial
Wi-Fi + Cloud
M400
8"
50+
Industrial (Advanced)
Full Cloud Collaboration
Find Your Perfect Match
Why Technicians Worldwide Trust JDIAG
Comprehensive Coverage
Full diagnostics for EFI systems, batteries, fault codes, and more--across all major global motorcycle brands
Simple & Efficient
Intuitive UI for fast troubleshooting and reduced repair times
Multilingual Interface
Supports English, Chinese, Spanish, French, and more
Continuous Innovation
Regular product updates and prompt technical support
Real Stories from Our Global Community
Marco Rossi
Ducati Specialist, Milan
"The M300's multilingual support helps me serve customers from all over Europe. Its accuracy with Ducati's complex systems has been remarkable."
Sarah Thompson
Harley-Davidson Workshop, Texas
Hiroshi Tanaka
Honda Service Center, Tokyo
"From basic scooters to high-performance machines, my M200 handles them all with exceptional precision. It's become indispensable to our operation."
Global Support | Multilingual, Always-On
12 Interface Languages | Certified in 36 Countries | 24/7 Technical Assistance
From Bangkok's busy repair stalls to Munich's premium Harley workshops--JDIAG is always by your side.
24/7 Technical Support
Our global technical team provides round-the-clock assistance through phone, email, and remote diagnostics.
Multilingual Interface
Full support for 12 languages including English, Chinese, Spanish, French, German, Italian, Japanese, and more.
Certified Worldwide
Our products are certified in 36 countries, meeting all local regulations and standards for automotive diagnostic equipment.
Ready to Elevate Your Motorcycle Diagnostics?
Join thousands of professional technicians worldwide who trust JDIAG for precise and efficient motorcycle diagnostics.
Choose JDIAG -- Where Professional Diagnostics Are Just a Tap Away.
Further Reading
Recommended resources for motorcycle diagnostic professionals
The Essential Role of a Reliable Diagnostic Tool for Every Motorcycle Owner
Streamlining Motorcycle Maintenance: How Diagnostic Tools Save Time and Cut Costs
JDiag M300 Motorcycle Diagnostic Tool: Essential for Optimizing Motorcycle Performance
Unleashing the Power: The Art and Science of Modern Motorcycle Diagnostics
Further Reading
Recommended resources for motorcycle diagnostic professionals