QISF Flywheel Stator Magneto Puller Tool Set — 110mm Universal Iron Puller with Bolts for Motorcycles ATVs Scooters

QISF Universal Flywheel Stator Magneto Puller is a heavy-duty iron tool set designed to safely extract flywheels, magnetos, and stators from motorcycles, ATVs, lawn equipment and small engines without damaging crankshaft threads.

If you work on bikes, scooters, watercraft, lawn mowers or small outboard motors, removing the magneto or flywheel is a common maintenance step that requires the right puller. The QISF Universal Flywheel Stator Magneto Puller is made from iron, features a 110 mm (4.3 in) main base diameter and includes the bolts needed to attach and extract rotors cleanly. Built to fit a wide variety of machines—examples include Yamaha YBR and similar 125cc models—this set helps you avoid makeshift methods that can score shafts, round off threads or damage castings.

Which engines and vehicles will this puller work on?

The QISF puller is intended as a universal-style tool for many small engines and powersports machines. It’s commonly used on motorcycles, scooters, ATV/PWC units, lawn and garden equipment, chainsaws and some outboard motors. Fitment depends on rotor/stator bolt spacing and thread sizes, so confirm compatibility before use.

• Typical fits: many 125–250cc motorcycles and scooters (e.g., Yamaha YBR series)
• Also suits ATVs, personal watercraft, lawn mowers and chainsaws
• Main base diameter: 110 mm / 4.3 inches for most common rotor sizes
• Includes bolts to fasten to rotors and apply even pulling force

How do I use this puller safely without harming the crankshaft?

Using the puller evenly and following thread alignment prevents damage. Fasten the puller to the flywheel with the supplied bolts, ensure the center forcing bolt contacts the crank nose squarely, and tighten steadily to withdraw the rotor. Avoid hammering or sudden jerks—apply slow, controlled force.

• Thread the set bolts evenly into rotor holes before applying force
• Center the forcing bolt on the crankshaft nose to prevent off-axis loads
• Turn the forcing bolt gradually, checking engagement and alignment
• Use penetrating oil if the rotor is corroded before pulling

What are the puller’s build and size details?

This tool set is made from iron for strength and durability when removing stubborn rotors. The main base has a 110 mm (4.3 in) diameter, which matches many common flywheel sizes. The kit ships as a single set with the necessary bolts so you can start a removal job right away.

• Material: forged or cast iron construction for rigidity
• Main base diameter: 110 mm (4.3 in) for common flywheel diameters
• Supplied bolts included to secure the puller to rotors
• Compact kit that stores easily in a toolbox or garage drawer

Can this puller replace model-specific tools or adapters?

For many routine repairs, the QISF universal puller eliminates the need for multiple model-specific removers. However, some manufacturers use unusual rotor bolt patterns or special spacers that require proprietary adapters. If your flywheel has rare dimensions or factory-specified tooling, check the rotor bolt spacing and thread sizes before relying solely on a universal kit.

• Works for many common bolt patterns and rotor sizes
• May need adapters for uncommon or manufacturer-specific setups
• Verify bolt thread size and hole spacing before purchase
• Use alongside service manual instructions for best results

Who is this for: Mechanics, backyard wrenchers and DIY riders who service motorcycles, scooters, ATVs, small engines and watercraft will benefit from this puller. It’s aimed at people who need a reliable, metal puller that fits many flywheel sizes—especially owners of Yamaha YBR 125 and similar models—who prefer a durable tool that reduces the risk of damaging crankshaft threads during rotor removal.