Lamellae of valves BOYESEN motorcycle Yamaha YZ 80cc LC / L from 1993 to 2001

Here are the slats of valves BOYESEN for Yamaha YZ 80cc LC / L from 1993 to 2001.

These competition valves allow you a very good power gain in both spas and high speed baths.

The patented BOYESEN system uses 2 slats on each side! A finer for the couple (resonance frequency at low speed) and a very rigid for high speeds (frequency in the very high regime). These valves are delivered with an ultra complete manual (adjustment carburetor etc etc,) Stops slats special removed and stickers.

Mounts on :

Off-road Yamaha YZ 80 / L - 1993/2001
Off-road Yamaha YZ 80 LC - 1993/2001