WH 125cc 150cc 8 Pole Magneto Stator

Brand: Mortch Motor
Product Code: MIWH125-3042

Product Viewed: 293

Availability: In Stock

Weight: 0.42kg

Packing Size: 11.00 x 11.00 x 6.00cm

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WH 125cc 8 Pole Stator Assembly

⚡ 8 Pole Stator · Magneto Coil · Charging Coil · Engine Electrical Component

For 125cc / 150cc 4-Stroke Scooter Engines · GY6 Series · QJ153QMI / 152QMI

📋 Product Overview

This is the WH 8 Pole Stator Assembly (also known as magneto coil or charging coil), a critical component of the motorcycle engine's charging and ignition system. This stator is commonly used on 125cc and 150cc 4-stroke scooter engines and is the standard configuration for GY6 series engines.

The stator works in conjunction with the magneto rotor (flywheel). As the engine runs, the rotor rotates and creates a changing magnetic field. The stator coils cut through the magnetic field lines, generating alternating current (AC) to power the vehicle's electrical system and charge the battery. This 8-pole coil design provides stable power output, ensuring proper ignition system operation and reliable electrical supply for all vehicle components.

✨ Core Functions: Provide trigger signal for ignition system · Power vehicle electrical components · Charge the battery · Ensure proper engine start and operation

⚙️ How It Works & Failure Diagnosis

🔩 How It Works

The stator consists of an iron core and copper coils, mounted on the left side of the engine crankcase. The magneto rotor (flywheel with magnets) rotates with the crankshaft, inducing electromotive force in the stator coils. The stator typically contains multiple coil sets: charging coil (powers main circuit), ignition coil (provides trigger signal for CDI), and lighting coil (powers headlights).

⚠️ Common Failure Symptoms

• Engine won't start or difficult to start
• No spark or weak spark
• Battery not charging, frequently discharges
• Dim headlights, unstable lighting
• Rough idle, poor acceleration
• Burnt coils, damaged insulation, abnormal resistance readings

🔍 Quick Test Method: Use a multimeter to measure resistance values of each stator coil. Normal ranges: Charging coil approximately 0.5-1.5Ω, Ignition trigger coil approximately 100-300Ω. If resistance values are abnormal (open circuit, short circuit, or outside normal range), the stator assembly needs replacement.

📐 Specifications

Displacement

125cc / 150cc

Poles

8 Pole

Coil Count

8 Coils

Mounting Location

Left Side Crankcase

Output Type

AC Output

Engine Type

4-Stroke Scooter

Engine Models

QJ153QMI / 152QMI (GY6)

Kit Includes

Stator Assembly (with Harness)

🔧 Compatible Engines & Vehicles

Compatible Engine Models: QJ153QMI / 152QMI (GY6 Series) and platform-compatible 125cc/150cc 4-stroke engines

QJ153QMI

152QMI (GY6)

Compatible Vehicles:

Keeway ARN 125
Keeway F-act 125
Keeway Matrix 125
Keeway RY8 125
Keeway RX9 LEONE
Other 125cc/150cc scooter models equipped with GY6 series engines

💡 Application Note: This 8-pole stator is the standard configuration for GY6 engines and fits most 125cc/150cc 4-stroke scooters. Before installation, verify that the pole count and connector type match your original stator.

✨ Product Features

8-Pole Coil Design: Features 8-pole coil configuration for stable power output to meet the electrical demands of the vehicle's systems.
High-Quality Copper Windings: Coils wound with high-purity copper wire for excellent conductivity, low heat generation, and superior durability.
Precision Silicon Steel Core: Core constructed from high-grade silicon steel laminations for optimal magnetic permeability and high energy conversion efficiency.
High-Temperature Insulation: Coils undergo vacuum impregnation treatment for excellent insulation properties, heat resistance, moisture protection, and anti-aging characteristics.
OEM Specification: Manufactured to exact GY6 engine factory specifications for a perfect replacement of worn original stators.
Plug-and-Play: Complete stator assembly with full harness and connectors — direct replacement with no wiring modifications required.

🔧 Installation Guide

1. Disconnect the negative battery terminal for safety.
2. Remove the left side fan cover and magneto cover (flywheel cover).
3. Use a flywheel puller tool to remove the magneto rotor (flywheel).
4. Remove stator mounting bolts and take out the old stator assembly.
5. Clean the stator mounting surface and inspect the wiring harness grommet for damage.
6. Install the new stator and tighten mounting bolts to specified torque.
7. Reinstall the magneto rotor, ensuring alignment with the keyway, and tighten the center nut to specified torque.
8. Connect the stator harness connectors and verify all connections are secure.
9. Reinstall the magneto cover and fan cover, reconnect the battery, and start the engine to test the charging system.
Important Note: Route the wiring harness carefully to avoid contact with moving parts. Use proper technique when operating the flywheel puller to prevent damage to the flywheel or crankshaft. Professional installation is strongly recommended.

⚠️ Important Notice: This is the WH 125cc 8 Pole Stator Assembly, designed for GY6 series engines. Compatible with Keeway ARN 125, F-act 125, Matrix 125, RY8 125, RX9 LEONE, and other 125cc/150cc platform scooters.
Spec Confirmation: Before purchasing, verify your engine model and original stator pole count (8 pole) to ensure compatibility. Staters with different pole counts are not interchangeable.
Failure Diagnosis: If experiencing no-start, no-spark, or charging issues, first test stator coil resistance values to confirm proper function.
Installation Caution: Stator installation involves internal engine components. Professional installation is strongly recommended. Secure wiring harness properly to prevent chafing or pinching. Product images are for reference only; 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.