C100 CDI Unit Assy

Brand: Mortch Motor
Product Code: MIC100-6052

Product Viewed: 251

Availability: In Stock

Weight: 0.10kg

Packing Size: 8.00 x 6.50 x 5.00cm

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C100 CDI Ignition Module - 5-Pin Square Connector

⚡ CDI Module · Capacitor Discharge Ignition · Ignition Controller · Electronic Igniter

For 50cc-150cc Gas Scooters, ATVs, Dirt Bikes & Go Karts · Fits 139FMB, 147FMD, 147FMF, 150FMG engines

📋 Product Overview

This is a Capacitor Discharge Ignition (CDI) Module (also known as ignitor), a core control component of the engine's electronic ignition system. It is suitable for 50cc, 70cc, 90cc, 110cc, and 150cc gas scooters, ATVs, dirt bikes, and go karts, fitting GY6/QMB139 series and Chinese-made Honda-style engines, including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The CDI module receives pulse signals from the magneto trigger coil, controls capacitor charging and discharging, and releases a high-voltage pulse to the ignition coil primary at precisely the right moment to generate a spark. Manufactured with high-quality electronic components, it offers precise timing, fast response, and stable performance. Features a 5-pin square connector compatible with most GY6 and Honda-style engines. This module is the ideal replacement when the original CDI fails, causing no spark, intermittent spark, or incorrect ignition timing.

✨ Key Functions: Receives trigger signals · Controls capacitor charging/discharging · Precise ignition timing · Generates high-voltage pulse · Drives ignition coil

⚡ How CDI Works

The Capacitor Discharge Ignition (CDI) system generates a spark through the following steps:

1️⃣ Charging

The magneto charging coil generates AC, which is rectified internally to charge the capacitor.

2️⃣ Triggering

The magneto trigger coil generates a trigger signal, activating the internal thyristor (SCR).

3️⃣ Discharging

The capacitor discharges instantly, creating a high-voltage pulse in the ignition coil primary.

4️⃣ Ignition

The ignition coil secondary steps up voltage to tens of thousands of volts, firing the spark plug.

💡 Note: CDI ignition systems operate without a battery, offering high reliability and fast response, making them the standard ignition method for modern small engines.

📐 Specifications

Product Name

CDI Ignition Module

Engine Application

139FMB / 147FMD / 147FMF / 150FMG

Connector Type

5-Pin Square Connector

Operating Voltage

AC 50V - 400V

Ignition Type

Capacitor Discharge (CDI)

Displacement

50cc - 150cc

🔌 5-Pin Connector Pinout

Pin	Function	Wire Color (Reference)	Description
1	Trigger Signal	Blue/White	From magneto trigger coil
2	Trigger Ground	Green/White	Trigger coil ground
3	Ignition Output	Black/Yellow	Connects to ignition coil primary
4	Power/Charging Coil	Black/Red	From magneto charging coil
5	Ground/Kill Switch	Black/White	Ground to kill engine; connect to kill switch

💡 Note: Wire colors shown are typical; actual colors may vary by model. Verify with original wiring before installation.

🔧 Compatible Engine Models

This CDI ignition module fits the following engine models:

139FMB

147FMD

147FMF

150FMG

Engine Reference Information:

139FMB: 1P39FMB / 1P39QMB · 50cc-125cc universal engine
147FMD: 1P47FMD · 70cc-110cc engine
147FMF: 1P47FMF · 90cc-110cc engine
150FMG: 1P50FMG · 125cc-150cc engine

Note: This CDI is designed for 4-stroke GY6/QMB139 and Chinese Honda-style engines with a 5-pin square connector.

🛵 Compatible Vehicles

Gas Scooters - 50cc-150cc scooters, underbones
ATVs - 50cc-150cc quad bikes
Dirt Bikes - 50cc-150cc off-road motorcycles
Go Karts - Karts using GY6/Honda-style engines
Other vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines with CDI ignition

📌 Compatibility Note: This CDI module features a 5-pin square connector. Please verify your original CDI connector type matches before purchase.

⚙️ Importance of CDI Module

⚡ Ignition Control Center

Precisely controls ignition timing for optimal engine performance.

🔥 Energy Conversion

Stores magneto-generated energy and releases it instantly for a powerful spark.

🔧 High Reliability

Electronic ignition with no contact points; reliable and maintenance-free.

⏱️ Fast Response

Capacitor discharge provides rapid response, ideal for high-RPM engines.

⚠️ CDI Failure Symptoms: No spark, hard starting, rough idle, hesitation during acceleration, high-speed misfire, engine stalling, abnormal engine noise (incorrect timing). If these occur, inspect and replace the CDI module.

⚠️ Common CDI Failure Symptoms

No Spark: No spark when testing high-tension lead to ground; engine will not start.
Hard Starting: Weak or intermittent spark; engine difficult to start.
Rough Idle: Unstable ignition energy causes idle fluctuation, hunting, or stalling.
Hesitation During Acceleration: Ignition cut-out during hard acceleration; vehicle surges.
High-Speed Misfire: Ignition fails at high RPM; engine cannot reach top speed.
Engine Stalling: CDI heat-sensitive; engine stalls when hot, restarts when cool.
Incorrect Timing: Advance too early causes detonation; too late causes power loss and overheating.

If you experience these symptoms, inspect the CDI module and related ignition components, and replace if necessary.

✨ Product Features

OEM Specifications: Manufactured to original ignition curves and parameters for accurate timing.
5-Pin Square Connector: Standard interface for direct plug-and-play replacement.
High-Quality Components: Premium capacitors, SCR, and other components for reliable performance.
Wide Voltage Range: Adapts to magneto output variations for stable ignition.
Universal Compatibility: Suitable for 50cc-150cc engines; high versatility.
Direct Replacement: Directly replaces faulty original CDI module without modification.

🔧 Installation Tip

1. Disconnect the battery negative terminal (if equipped) before replacing the CDI module.
2. Locate the original CDI module, typically mounted on the frame or near the engine.
3. Unplug the 5-pin square connector and inspect for corrosion or damage.
4. Plug in the new CDI module, ensuring the connector is fully seated.
5. Secure the CDI module with zip ties to prevent vibration damage.
6. Start the engine and verify proper ignition function with no misfires.
7. If starting issues persist, inspect the magneto trigger coil, charging coil, and ignition coil.
8. Note: Some models have anti-theft or kill switches; verify proper operation.

⚠️ Important Notice: This is a CDI ignition module with a 5-pin square connector, suitable for 50cc-150cc gas scooters, ATVs, dirt bikes, and go karts, fitting 139FMB, 147FMD, 147FMF, 150FMG 4-stroke GY6/QMB139 and Chinese Honda-style engines.
Connector Confirmation: Verify your original CDI has a 5-pin square connector before purchase. Some models may use 4-pin or 6-pin connectors; confirm compatibility before ordering.
Installation Notes: Ensure the connector is fully seated. If problems persist, inspect the magneto trigger coil, charging coil, and ignition coil. Images are for reference only. The actual product may vary.

🔧 Compatibility Notice

Please verify that this part fits your specific vehicle model and year. Many vehicles share similar names but use different components depending on year or market region.
We strongly recommend cross-checking with your vehicle's owner's manual or contacting us for confirmation before placing your order.

📄 Product Disclaimer

Product images, measurements, and descriptions are for reference only. Slight variations in color or appearance may occur due to manufacturing batches or photography lighting—functional specifications remain identical to the ordered part.
Professional installation is mandatory. Mortch Motor assumes no liability for damages, injuries, or losses resulting from improper installation, misuse, unauthorized modification, or abnormal operation.

💰 Import Duties & Taxes

All listed prices EXCLUDE shipping costs, import duties, taxes, and customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are solely the buyer's responsibility.
In case of return due to unpaid duties/taxes or refusal to clear customs, the buyer shall bear the original shipping cost, return shipping fees, and any associated administrative charges deducted from the refund.

📌 Order Confirmation: By completing your purchase, you acknowledge that you have read, understood, and agreed to all terms above. For any questions, please contact our support team prior to ordering.