Motorcycle AC DC CDI
Professional Motorcycle AC & DC CDI Manufacturer
The Motorcycle AC/DC CDI is one of the most critical components in a motorcycle ignition system. It controls ignition timing by storing electrical energy in a capacitor and releasing it to the ignition coil at the precise moment, ensuring fast engine starting, stable combustion, improved fuel efficiency, and reliable engine performance.
Why Choose Maixing Electromechanical
Choosing Maixing Electromechanical means partnering with an experienced manufacturer focused on reliable ignition technology and customer success.
Professional Ignition System Expertise
Years of experience in manufacturing motorcycle CDI units and other ignition system components.
Reliable Global Supply
Flexible production capacity and extensive export experience ensure stable supply and on-time delivery for customers worldwide.
Dedicated Technical Support
Our experienced engineering team provides timely assistance from product selection to after-sales technical support.
Long-Term Partnership
We are committed to helping customers build sustainable supply chains through dependable products, responsive service, and continuous innovation.
AC CDI vs. DC CDI
Understanding the differences between AC CDI and DC CDI helps customers select the appropriate ignition system for specific motorcycle applications.
|
Feature |
AC CDI |
DC CDI |
|
Power Source |
Alternating current from magneto stator |
Direct current from battery |
|
Battery Dependency |
Not required during engine operation |
Requires battery power |
|
Starting Performance |
Reliable at normal engine speeds |
Excellent cold-start performance |
|
Ignition Stability |
Stable for standard motorcycles |
More consistent ignition timing |
|
Electrical Efficiency |
High |
Very High |
|
Typical Applications |
Motorcycles, scooters, off-road bikes |
EFI motorcycles, performance motorcycles, premium models |
Technical Specifications
|
Item |
Specification |
|
Product Name |
Motorcycle AC/DC CDI |
|
Product Type |
Capacitor Discharge Ignition Module |
|
Power Type |
AC CDI / DC CDI |
|
Application |
Motorcycle Ignition System |
|
Housing Material |
Flame-Retardant Engineering Plastic |
|
Circuit Protection |
Over-voltage & Short-Circuit Protection |
|
Waterproof Rating |
Available |
|
Operating Temperature |
-40°C to +125°C |
|
Vibration Resistance |
High |
|
Quality Standard |
ISO 9001 Manufacturing System |
Key Features
Fast & Accurate Ignition Control:Advanced circuitry — precise timing, quick starting, smooth acceleration, stable combustion.
Stable Engine Performance:Optimized algorithms — consistent spark across RPM ranges, improved throttle response, fuel efficiency.
High-Quality Electronic Components:Premium capacitors, ICs, resistors, semiconductors — enhanced durability, electrical stability, long-term reliability.
Excellent Heat Resistance:High-temp-resistant materials + sealed housings — reliable under demanding engine compartment conditions.
Strong Vibration Resistance:Designed for rough roads and off-road — reliable ignition under continuous vibration.
Compact & Durable Design:Lightweight, sealed, corrosion-resistant — improves durability, simplifies installation.
How Motorcycle AC & DC CDI Works
A CDI (Capacitor Discharge Ignition) stores energy in a capacitor and releases it to the ignition coil at the correct timing — coil generates high voltage for spark plug to ignite air-fuel mixture.
AC CDI and DC CDI work on the same principle but differ in power source.
Power Supply
AC CDI: from magneto stator (AC). DC CDI: from battery (DC).
Capacitor Charging
CDI rapidly charges internal capacitor — stores sufficient energy for ignition.
Trigger Signal Detection
Pulse generator (pickup coil) sends trigger signal — indicates crankshaft position.
Ignition Timing Control
CDI processes signal — determines optimal timing per engine operating conditions.
High-Voltage Discharge
Stored energy discharged to ignition coil — amplifies voltage, delivers high-energy spark to plug.
Continuous Ignition Cycle
Process repeats while engine runs — stable combustion, smooth acceleration, reliable performance.
Applications
Maixing Electromechanical AC & DC CDI units provide stable ignition performance across a wide range of motorcycles and power sports vehicles.
Commuter Motorcycles
Dependable starting, fuel-efficient — city bikes, standard commuters, small displacement, utility.
Scooters
Compact, stable timing, reliable performance — urban scooters, delivery scooters, personal mobility, small-engine.
Sports & Performance Motorcycles
High-RPM, demanding ignition — sport bikes, racing, modified, touring.
Off-Road & Adventure Motorcycles
Withstands vibration, dust, mud, moisture — dirt bikes, enduro, adventure, motocross.
Customization
Every motorcycle manufacturer has unique ignition requirements — Maixing Electromechanical provides comprehensive OEM/ODM services for tailored CDI units.
Electrical Performance Customization
AC/DC configuration, ignition timing curve, rev limiter, operating voltage, trigger sensitivity, spark advance, output parameters.
Structural Customization
Housing dimensions, mounting brackets, connector configuration, pin layout, wiring harness, cable length, waterproof sealing, housing color.
Material Customization
Housing materials, flame-retardant plastics, waterproof compounds, connector materials, electronic component grades, protective coatings.
Private Label Manufacturing
Laser engraving, product labels, private-label packaging, barcode printing, user manuals, warranty cards, customized cartons.
Manufacturing Process
Every CDI unit is manufactured through standardized procedures to ensure reliable ignition performance and consistent quality.
Incoming Material Inspection:All electronic components, integrated circuits, capacitors, resistors, connectors, housings, wiring harnesses, and packaging materials are inspected before production begins.
SMT Circuit Assembly:High-precision SMT production lines automatically mount electronic components onto printed circuit boards to ensure excellent manufacturing accuracy and consistency.
PCB Soldering & Inspection:Circuit boards undergo precision soldering followed by Automated Optical Inspection (AOI) to verify solder quality and component placement.
Program Configuration & Calibration:For programmable models, ignition parameters are configured and calibrated according to customer specifications and engine requirements.
Housing Assembly:The PCB is installed into the protective housing, followed by connector installation, resin encapsulation where required, and sealing for enhanced vibration and moisture resistance.
Functional Testing:Each CDI unit undergoes comprehensive testing to verify ignition signal, trigger response, output voltage, timing accuracy, short-circuit protection, over-voltage protection, and functional simulation.
Reliability Testing:Selected products are subjected to high-temperature, low-temperature, thermal cycling, vibration, moisture resistance, and continuous operation testing.
Final Inspection & Packaging:Finished products are inspected for appearance, labeling, electrical performance, connector quality, and packaging before shipment.
Factory Capability
Maixing Electromechanical Co., Ltd. is a leading high-tech enterprise based in Chongqing, China, that specializes in the production of motorcycle electrical parts. Established in 1995, we are committed to providing high-quality and innovative products to our customers.
With an impressive facility spanning over 100 mu and a team of 480 employees, including 25 technical team members, we have an annual output value of 300 million yuan. We have established ourselves as a trusted supplier in the industry, producing 6 million sets of motorcycle magneto and starting motor each year.
Engineering & R&D Capability:Our experienced R&D team continuously develops advanced ignition technologies, with capabilities including CDI circuit design, ignition timing optimization, ignition curve programming, circuit simulation, waterproof structure design, connector development, reverse engineering, prototype development, and OEM electronic solution design.
Flexible Manufacturing Capacity:We support projects of various production scales, including prototype development, sample production, small-volume orders, OEM manufacturing, large-scale production, and long-term supply programs, ensuring stable delivery with high product consistency.
Global Supply Experience:Our CDI products have been exported to customers across Asia, Europe, North America, South America, the Middle East, and Africa, serving motorcycle manufacturers, aftermarket distributors, wholesale importers, retail chains, repair centers, and private-label brands.
Packaging & Global Shipping
Electronic ignition modules require secure packaging to prevent damage from vibration, moisture, and electrostatic discharge during transportation.
Packaging Options
We offer a variety of export packaging solutions, including anti-static bags, moisture-proof packaging, individual protective boxes, OEM color boxes, neutral packaging, foam cushioning, heavy-duty export cartons, palletized shipments, and wooden cases for bulk orders, with customized branding and retail packaging also available.
International Shipping
To meet different delivery requirements, we support Full Container Load (FCL), Less than Container Load (LCL), Air Freight, Railway Transportation, International Express, and Multimodal Logistics, with our logistics team assisting customers in selecting the most efficient shipping solution based on destination, lead time, and shipment volume.
Export Documentation
We can provide complete export documentation, including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, Product Specifications, Quality Inspection Reports, User Manuals, Warranty Documents, and other customer-required documents.
Certifications
Our manufacturing and quality management system supports compliance with:
ISO 9001 Quality Management System
CE Compliance (where applicable)
RoHS Compliance (for applicable electronic products)
FAQ