Dr. Pulley Over-range Variator; Yamaha 2T
Dr. Pulley Over-range Variator; Yamaha 2T
$101.10
9 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
DESCRIPTION: High Quality, High Performance variator from Dr. Pulley. This is a great upgrade for your bone stock or high performance engine. Variator kit includes, Back Plate with spacers, Drive Face, Pulley, Pulley Spacers, and Drive Boss.Fits Yamaha/Minarelli 50 cc 2T engined scooters.Pulley O.D. 94mm I.D. 18mmCrank Diameter. 13mmRamp Plate. 17 tooth 13mm
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, Minarelli, 2-Stroke
- Fits Models / Common Applications: Yamaha and other compatible models may apply.
- Fitment Notes: Performance
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 1.75 lbs |
|---|---|
| Dimensions | 8 × 6 × 2.5 in |
Maximum Drive: Dr. Pulley Over-Range Performance Variator
Push your top speed and acceleration to the limit with the Dr. Pulley Over-Range Variator Kit. Designed for the serious enthusiast, this "Over-Range" system features an oversized 94mm pulley diameter and re-engineered ramp angles. This allows your drive belt to travel further than the factory variator permits, effectively giving your 2-stroke Minarelli engine a wider gear ratio for explosive take-offs and a significantly higher top-end cruising speed.
Technical Performance Features
- Oversized 94mm Face: Larger diameter than stock variators, providing a greater surface area for the belt to travel higher, resulting in increased top-end velocity.
- Extended Ramp Geometry: Optimized for use with high-performance sliding weights, allowing for a smoother, more linear power band without the "dead spots" common in OEM units.
- Complete Tuning Kit: Includes the variator boss, backing plate with sliders, drive face, and precision spacers to ensure perfect alignment and belt tracking.
- High-Heat Dissipation: Constructed from a lightweight, high-strength alloy designed to maintain consistent friction levels and prevent belt slip during aggressive riding.
Comprehensive Fitment Guide
This 13mm spline variator is designed for 50cc 2-Stroke Minarelli (1PE40QMB/Jog) engines:
| Brand / Engine | Compatible Model Series |
|---|---|
| Yamaha | Zuma 50 (Pre-2012), Jog 50, Vino 50 |
| Adly / Hammerhead | Fox 50, Jet 50, Muddy Bug 50 |
| Crank Specs | Fits 13mm Crankshaft / 17-Tooth Spline |
Technical Specifications
- Pulley Outer Diameter: 94mm
- Inner Diameter (Boss): 18mm
- Crankshaft Spline: 13mm (17-Tooth)
- Kit Includes: Variator, Drive Face, Back Plate, Sliders, and Spacers
Mechanic's Note: This is an "Over-Range" kit, meaning it is physically larger than your stock variator.
Installation Tip: Because of the 94mm diameter, ensure your Starter Bendix and crankcase have enough clearance; some minor material removal from the case may be required on specific clones.
Pro Tip: To get the most out of this kit, pair it with Dr. Pulley Sliding Weights and a fresh Kevlar Drive Belt to handle the increased gear range!
SKU: 1200-1111
Vendor: Dr. Pulley
