Stator Coil – 250cc – E/Start – ZS172FMM

​Genuine Zongshen part, we do not use cheap variants with poor quality.

12v stator/magneto to fit the 250cc 172fmm-3A engine.

• 100% Copper stator magneto 8 pole alternator current (AC)
• Coil material: copper
• Wire length: approx. 480mm
• Outer diameter: approx. 88mm
• Inner diameter: approx. 32mm
• Copper wire diameter: approx. 1mm
• Screw hole centres: 40mm, plus one additional centrally positioned.
• Screw hole size: 5.5mm
• Suited for 250cc but may fit other engines

Wiring:
Black/Red - Power to CDI
Blue/white - Timing trigger to CDI
Green - Ground to CDI
Yellow - AC power to rectifier (for battery and lights etc)
Pink - AC power to rectifier (for battery and lights etc)

Stator Magneto Coil for 250cc 172FMM-3A engines – AC 12V alternator

Upgrade your bike’s electrical system with this high-performance Stator Magneto, designed for use with 250cc engines, such as the Zongshen ZS250cc 172FMM-3A engine. Whether you're riding on the road or off the beaten track, this AC stator delivers consistent output for reliable ignition and lighting performance.

It may suit other similar engines.

Key Features:

• ✅ 12V AC Stator – Provides strong, consistent power for ignition and lighting

• ✅ 100% Copper Windings – Durable and efficient for long-term use

• 🔧 Copper Wire Diameter: 1mm

• 🔧 Wire Length: 480mm

• 🔧 Coil Face OD: 88mm

• 🔧 Shaft Hole: 32mm

• 🔧 Screw Hole Centres: 40mm, plus one additional centrally positioned.

• 🔧 Screw Hole Size: 5.5mm

• 🔌Connector Type – Standard plug type with 5 wires for easy plug and play

Fitment Compatibility:

• ✅ Suitable for:

  • 250cc engines with engine number code 172FMM-3A

  • similar engines which match the dimensions stated above

Wiring Diagram / Colour Code:

• ⚫🔴 Black/Red – CDI power input

• 🔵⚪ Blue/White – CDI timing trigger

• 🟢 Green – Earth/ground

• 🟡🌸 Yellow & Pink – To regulator/rectifier for lighting/charging battery, etc.

Diagnostic Tips – Is Your Stator the Issue?

Use a multimeter to test your stator before replacing:

1. Pickup Coil Resistance Test

• Set to 2000Ω

• Test Blue/White to Green

• ✅ Reading: 100Ω+ | ❌ If: 0, OL, or unusually low

2. Power Coil Voltage Test

• Set to 20V AC

• Test Black/Red to Green

• Kick-start the bike

• ✅ Reading: 3V+ spikes | ❌ If: No output or very low reading

⚠ Important Notice: Electrical components cannot be returned once fitted or altered. Please ensure compatibility before purchasing.