Minarelli 2-Stroke Variator Shims

Minarelli 2-Stroke Variator Shims for 50cc Scooters

These Minarelli 2-Stroke Variator Shims are made for 50cc scooters that use an 18mm variator boss. Their job is to help the variator open fully so the belt can travel its full range. They are one of the Minarelli 50cc / Yamaha Jog scooter parts available, and correct variator operation is what they are meant to support.

How Variator Shims Work

The shims act as spacers placed between the variator's drive faces. Adding length to the variator boss lets the variator open all the way, which helps the transmission work as intended. With the variator opening properly, the scooter may accelerate more smoothly and run better overall.

Installing the Shims

Fitting the Minarelli variator shims is simple enough for anyone comfortable with basic scooter maintenance. Place the shim thickness you need between the variator's drive faces. Because the shims come in several thicknesses, you can adjust the setup to suit how your variator behaves.

Specifications

• Size: For use with 18mm variator bosses only
• Fits: 50cc 2-stroke horizontal Minarelli engines with an 18mm variator boss: Yamaha Jog, Zuma, Vino

Compatible Models

Fits:

• Yamaha Jog (50cc 2T horizontal Minarelli, 18mm variator boss)
• Yamaha Zuma (50cc 2T horizontal Minarelli, 18mm variator boss)
• Yamaha Vino (50cc 2T horizontal Minarelli, 18mm variator boss)
• Aprilia SR50 (50cc 2T horizontal Minarelli, 18mm variator boss)
• Malaguti F12 and F15 (50cc 2T horizontal Minarelli, 18mm variator boss)
• Adly Silver Fox and Thunderbike (50cc 2T horizontal Minarelli, 18mm variator boss)
• Other bikes with 50cc 2T horizontal Minarelli engines using an 18mm variator boss

How to choose: Only use these if your variator boss measures 18mm. The shims are supplied in .1mm, .2mm and .5mm thicknesses, with 10 of each.

Browse related parts: Minarelli 50cc / Yamaha Jog Parts · Scooter Variators & Roller Weights · Scooter Parts