4 Pin Universal CDI
Product Classification
4 Pin Universal CDI is a heavy-duty, AC-fired capacitor discharge ignition unit designed as an all-encompassing replacement part for standard single-cylinder 4-stroke engines ranging from 50cc up to 150cc. It provides direct compatibility with standard GY6 scooters, light utility ATVs, pit bikes, and off-road dirt bikes.
Electrical Componentry & Internal Layout
Automotive-Grade SCR
Heavy-duty thyristor architecture to eliminate high-load thermal drift.
Low-ESR Film Capacitors
Rapid millisecond discharge cycles to prevent ignition voltage drops.
High-Density Polymer Matrix
100% encapsulation of internal traces for off-road vibration isolation.
Heavy-Gauge Blade Receptacles
Anti-oxidation alloy pins engineered for arcless mechanical connections.
Functional Operational Profiles
Low-RPM Startup Assistance
150 RPM minimum trigger activation speed to spark at low cranking turnover.
High-Voltage Spark Delivery
25kV to 30kV discharge arc to clear carbon buildup and balance air-fuel variances.
Automated SMT Assembly Circuitry
100% automated surface-mount machine component placement to eliminate manual solder joints.
Customization Options
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Customization Item |
Available Options |
|
Firmware Programming |
* Standard factory RPM limits * Performance unlocked (No-Limit) profiles * Custom advance curves for specific displacements |
|
Casing Branding |
* Private distributor logos * Factory part numbers * Laser-engraved batch tracking codes |
|
Housing Aesthetics |
* Standard matte black housing * High-visibility orange tuning shells * Translucent performance casings |
|
Packaging Solutions |
* Individual anti-static bags * Branded retail hang-tag boxes * Neutral bulk export cartons * High-density assembly line crates |
Technical Inspection Stages
Capacitor Overvolt Screening
High-load voltage injection to eliminate weak components before SMT assembly.
Automated Layout Scan
100% optical inspection of circuit tracks to ensure trace continuity.
Severe Climate Soaking
Continuous temperature cycling (-30°C to +90°C) to verify outer housing seal durability.
Simulated Drive Cycle
Continuous firing runs on dynamic simulator blocks to ensure the trigger system matches various pickup coil signals.
Certified Quality & Compliance
Scale: Over 100 mu of manufacturing footprint.
Team: 480 total staff, including 25 dedicated technical engineers.
Capacity & Value: Producing 6,000,000 sets of motorcycle magnetos and starting motors annually, with an annual output value of 300 million RMB.
Compliance: ISO 9001:2015 and CCC certified, operating with official environmental permits and verified tier-1 OEM partnerships.
Global Market: Products exported to key global markets across North America, South America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
FAQ
Q: What prevents this universal module from premature thermal burnout?
A: We utilize an upgraded, high-amperage automotive SCR paired with high-thermal-conductivity resin potting. This setup accelerates heat dissipation from internal components, keeping the field defect rate below 0.3%.
Q: How does this CDI eliminate high-RPM spark cutout?
A: The unit features low-loss, rapid-discharge capacitors that complete their charge cycle in milliseconds. This ensures a consistent, high-intensity arc up to the 9,500 RPM limit without missing fire.
Q: Is specialized infrastructure required for vehicle integration?
A: No. The module is engineered around universal OEM resistance values. It integrates directly with standard universal AC-fired stators, 2-wire pickup sensors, and standard high-voltage coils.
Q: What occurs if this AC module is connected to a 12V DC battery feed?
A: Connecting an AC CDI to a DC power supply will instantly destroy the internal charging circuit. Procurement managers must ensure local networks verify the stator power source before installation.
Q: How does the casing handle severe off-road vibration stresses?
A: We replace standard rigid potting plastics with a semi-flexible structural epoxy. This compound absorbs high-frequency chassis impacts, preventing surface-mounted components from cracking off the circuit traces.
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