Yamaha GL750

The Yamaha GL750 4 cylinder 2 stroke prototype which was displayed on the 19th Tokyo Motorshow in November 1971 was the ultimate bike...........

 

The Yamaha GL750 (codename YZ 401) sadly never reached the production stage. I remember that Yamaha dealers from Germany and France even 15 years later talked with passion about this bike, having seen it on the Paris' Motor Show. (where it was displayed in the Autumn of 1972)).

Yamaha GL750
Yamaha GL750
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The engine had in it already the ideas and design for the mighty Yamaha TZ700,/TZ750 which would be introduced in 1974. Actually the crankcases were taken from the YZ648 (TZ700 Prototype). The cycle parts were very similar to the production machine TX750 and shared with the Yamaha Rotary RZ201, (also a prototype). The two-stroke injection system was also a prototype item for snowmobiles....! Many journalists at that time wondered if that engine ever turned its crankshaft,,,,,,,,! The Yamaha TZ700 would be a great testimony later!

Yamaha GL750
Yamaha GL750
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It really is a prototype and the "curtains"are just drawn!

 

Yamaha GL750
Yamaha GL750

You can see that the dash panel bears a striking resemblance with that of the TX750. A temperature gauge for the cooling system is added of course, but for the rest it is identical.

Yamaha GL750
Yamaha GL750
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Mr. J.C. Olivier from Sonauto (now Yamaha Motor France) managed to get the bike once for the Paris' Show. That was the only time it appeared outside Japan. The project was only dropped because of the tightening future standards on emissions and noise level, especially in the USA.

I remember that it arrived in the Yamaha Amsterdam workshop and I crawled around it on my knees for more than one hour !!!! Here the GL750 is in full glory on the Sonauto Yamaha stand in October 1973.

 

Yamaha GL750
Yamaha GL750

Yamaha France published another picture on their own website in 2005 at the occasion of Yamaha's 50th Anniversary.

 

Yamaha GL750
Yamaha GL750

Can you imagine the fun, accelerating this Yamaha GL750 from the traffic lights leaving all car-drivers with wide open mouths and in a blue haze of lovely stinking two-stroke smoke........! Environmentalists were not invented then.....!

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