JOG 90 Oversized Variator Pulley Set
JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set
JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set JOG 90 Oversized Variator Pulley Set

JOG 90 Oversized Variator Pulley Set

Longer belt travel. Smoother shift curve. Better heat control.

This Oversize Variator Kit for Yamaha JOG 90 pairs a 100 mm drive pulley (14° face) with a matched ramp plate and an oversize 100 mm cooling fan. The larger working diameter increases effective belt travel for a wider ratio range, while the face geometry supports a predictable shift and steady mid-range. The aluminum fan helps move more air through the CVT compartment to keep performance consistent in stop-and-go riding.

Highlights

  • 100 mm Oversize Pulley — Extends belt climb for broader ratio coverage and cleaner launches.

  • 14° Face Geometry — Aims for linear, repeatable shifting with stable belt contact.

  • 100 mm Cooling Fan — Improves airflow through the cover to help manage heat and glazing.

  • OEM-Fit Interfaces — ID 21 mm bore and ramp plate profile align with stock hardware.

  • Tuning-Friendly — Works with common roller weights and belts to target your preferred RPM band.

Product Specifications
✔ Pulley OD / ID: 100 mm / 21 mm
✔ Pulley Face Angle: 14°
✔ Fan OD: 100 mm
✔ Total Kit Weight: 405 g
✔ Type: Oversize Variator Pulley + Ramp Plate + Cooling Fan
✔ Fitment: Yamaha JOG 90
✔ Package Includes: Oversize Drive Pulley ×1, Ramp Plate ×1, Oversize Fan ×1

Installation Notes

  • Verify cover clearance for the 100 mm pulley/fan and confirm belt width/length compatibility.

  • Start with current roller weights; adjust in ±0.5–1.0 g steps to hit target RPM.

  • Keep pulley faces clean and dry; follow service manual for ramp plate lubrication guidelines (do not grease belt contact areas).

  • Torque the variator nut to spec; hand-rotate to confirm no rubbing, then road-test and inspect belt climb marks.

Power You Can Trust.