The Factory version of the Yamaha HL500 as designed by the famous Swedish former World Champion Sten Lundin was a remarkable bike.

This Yamaha HL500 "Factory" machine was the last 4-stroke to win a Grand Prix Motocross before a very long period of 2-stroke domination began. Bengt Aberg won the Luxembourg Grand Prix on this very machine.

Yamaha HL 500 Sten Lundin Works bike