JOG 90 High Rotational Speed Alternator Assy
JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy
JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy JOG 90 High Rotational Speed Alternator Assy

JOG 90 High Rotational Speed Alternator Assy

Stable charge at revs. Cooler airflow. Plug-in fit.

This High Rotational Speed Stator Assembly for Yamaha JOG 90 replaces the stock coil pack with a high-rpm-ready stator and includes a matching alternator fan. Heat-resistant windings and a tight lamination stack help maintain charging output and a clean pickup signal at elevated RPM, while the fan pushes fresh air through the shroud to temper cylinder/head temps in stop-and-go riding.

Highlights

  • High-RPM Output Stability — Consistent AC charge and pickup triggering across the rev range.

  • Heat-Resistant Build — High-temp enamel wire and upgraded insulation stand up to under-cowl heat.

  • OEM-Fit Backing Plate — Bolt pattern and harness routing follow stock geometry for straightforward install.

  • Cooling Airflow Fan — Drives air through the shroud for steadier temperature control.

  • Harness Compatibility — Designed to work with the stock rotor/flywheel, CDI, and regulator* (*check your model’s plug type and system).

Product Specifications
✔ Type: High Rotational Speed Stator Assembly (AC magneto)
✔ Fitment: Yamaha JOG 90
✔ Contents: Stator Coil Assembly ×1 (with output leads/connector), Alternator Fan ×1
✔ Note: Rotor/Flywheel not included (reuse OEM)

Installation Notes

  • Remove the flywheel/rotor with the correct puller to access the stator; route the harness clear of moving parts.

  • Set pickup (trigger) coil air gap to spec (if equipped) and verify timing mark alignment.

  • Install the fan with the correct rotation/orientation; check shroud/cover clearance.

  • Torque fasteners to spec; start the engine and confirm charging voltage and spark stability at idle/mid-RPM.

  • After a short heat cycle, recheck fastener torque and the grommet seal for leaks or chafing.

Power You Can Trust.