Kymco 4-Stroke Scooter Performance CDI

Kymco 4-Stroke Scooter Performance CDI. The CDI and ignition coil create the spark that fires your engine. Built to fit Kymco. Shop more Kymco Scooter Parts and Scooter CDI & Ignition.

No spark, misfires or a hard start can mean a failed CDI or coil. Match the connector pins (AC or DC CDI) to your wiring harness.

Product details

Break through the factory-imposed speed limits of your Kymco or SYM scooter with the  Performance Unlimited CDI. Most stock 4-stroke scooters are equipped with a restrictive ignition box that "cuts out" just as you reach your peak power band. This high-performance unit features a de-restricted ignition curve with no RPM ceiling, allowing your engine to rev freely to its true mechanical potential. Expect improved throttle response, smoother acceleration, and a significant increase in top-end speed.

Advanced Ignition Technology

• Unlimited RPM: Completely removes the factory governor, allowing for higher top speeds—especially when paired with performance variators and exhaust systems.
• DC-Fired Reliability: Designed specifically for DC (Direct Current) ignition systems, providing a consistent, high-energy spark regardless of engine RPM.
• Optimized Timing Curve: Features an advanced ignition map that provides better "snap" off the line and more stable power through the mid-range.
• Taiwanese Precision: Manufactured in Taiwan by , a world leader in small-engine performance electronics, ensuring maximum durability and vibration resistance.

Comprehensive Fitment Guide

This CDI is a direct "plug-and-play" upgrade for DC-Fired 4-Stroke scooters using a standard 6-pin (4+2) connector:

• Kymco: Agility 50/125, Sento 50, People S 50, Vitality 50, Yager GT 50
• SYM: Allo 50, Fiddle II 50, Jet 4, Orbit II 50, Symphony 50, Symply 50
• Connection: Standard 6-Pin (4 Pin + 2 Pin) Square Plug

Technical Specifications

• Ignition Type: DC (Direct Current)
• RPM Limit: None (Unlimited)
• Dimensions: 93mm (L) x 54mm (W)
• Origin: Made in Taiwan
• Manufacturer Part Number (MPN): NK390.16

Critical Compatibility Check: This is a DC-fired CDI. Verify compatibility before installation.

Performance Tip: To fully take advantage of the unlimited RPM range, we highly recommend upgrading to Dr. Pulley Sliding Roller Weights. 

This product is intended for off-road use only.

This product is not intended for use on public roads or land.

Notice: Performance parts, electrical parts, and tools are NOT refundable or covered by warranty. Reference https://www.com/pages/policies for more information.

Specifications

• Fits: Kymco
• Part type: CDI & Ignition
• Condition: New

Fitment check

Compare this part with your original before ordering: match the size, connector or part number, and the position on your scooter. Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm.

Shop more: Kymco Scooter Parts · Scooter CDI & Ignition · Scooter Parts