Naraku Performance CDI for Kymco 4-Stroke Scooters
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Break through the factory-imposed speed limits of your Kymco or SYM scooter with the Naraku 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 Naraku 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 Naraku, 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:
| Brand | Compatible 4-Stroke Models |
|---|---|
| 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.scooterworks.com/pages/policies for more information.
SKU: 137-55
Vendor: Naraku
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.