The History of the TX750

Introduction

Yamaha wanted to continue on the path set with the successful XS650 motorcycle and create its own line of modern powerful 4-stroke motorcycles.

Please remember that in the early 1970’s the Japanese Manufacturers all followed (and had) their own identity. The UJM (Universal Japanese Motorcycle) came later.

So the initial plan was made for a series of twin cylinder 4-stroke machines, first the TX750, to be followed by the TX500 and smaller brothers (you have seen the TX350 already on my pages).

Engineers were asked to use their imagination for the creation of this first Yamaha big bike.

The result was the TX750 which had a lot of novelties, like the Omni-Phase balancer system, a Positive Crankcase Ventilation system, whereby fumes were re-directed to the airfilter box. A system that has become common on all engines in the world nowadays. The TX750 was also the very first machine with valve seats made for use with lead-free petrol and we all remember the fail-safe double rear lights, the light-alloy wheel rims and the double front disc brake for the European Market.