Naraku

Naraku Performance CDI for Kymco 4-Stroke Scooters

SKU 137-55
$60.00 Sold out
Shipping calculated at checkout.
Description

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.

WARNING: California’s Proposition 65

SKU: 137-55
Vendor: Naraku

Product Diagrams
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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