Moturo Alternator for Yamaha Big Bear Tracker YFM 250

Moturo Alternator Set for Yamaha Big Bear Tracker YFM 250 01-04

The Moturo alternator set for your Yamaha Big Bear Tracker YFM 250 01-04 (XN, XP, XR, XS) — replacement part for ignition problems and electrical system failures. Includes stator, pickup, and wiring harness, ready for installation.

The alternator is located on the crankcase and supplies power to the ignition system, lighting, and onboard electrical system. The stator, pickup, and wiring harness are supplied as a complete set in OEM quality according to specifications for the YFM 250 XN, XP, XR, and XS (model years 2001 to 2004, 18 hp, 230 cc).

A defective stator is a common cause of ignition misfires, charging problems, and voltage fluctuations on an ATV. Replacing it is the clean solution if the measured values at the stator cannot be clearly interpreted.

Replacement takes about an hour with a hex key set, socket wrench set, and torque wrench.

Alternator for your Big Bear Tracker, made by Moturo.

Performance · Material · Specifications

• Complete set consisting of stator, pickup, and wiring harness
• OEM quality according to specifications for YFM 250 XN, XP, XR, and XS (model years 2001 to 2004)
• Supplies power to ignition system, lighting, and onboard electrical system
• Platform 18 hp / 230 cc

Important notes – please read

Original spare part design, no separate ABE (general operating permit) required. Compare the connection diagram and connector position with the product image before ordering — Big Bear 350 (YFM 350) and later platforms have different geometry.

Tools & Time Required

• Hex key set in common sizes
• Socket wrench set for the fastenings on the crankcase
• Torque wrench
• Approximately one hour for an experienced mechanic

Scope of delivery

1 × Alternator set (stator, pickup, wiring harness, ready for installation). Not included: gaskets, screw set, tools.

Frequently Asked Questions

Does the set also fit the Big Bear 350 (YFM 350)?
No. Different platform and different alternator geometry.

Do I need a TÜV registration?
No. Original spare part design, no separate ABE required.

Why a complete set instead of just the stator?
Stator and pickup are complex to test — replacing them together saves disassembly time and eliminates two frequent sources of error in one go.