Dear TX750 Fans, here is part of the TX750 story. When I remember more, I will add or modify things in the future....!
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.
It was (and is) a very beautiful motorcycle.(you can click for the TX, to exit, go to "vorige"-"previous" <<<< (upper left in your browser)
Even today, 35 years later, nobody can deny that the TX750 was styled like a motorcycle should be. Everything was in proportion, in harmony. This was accentuated with the nice “candy” colours of the day. And that is probably also one of the reasons that the TX750 still has so many fans around the world, even though its life-span was rather short.
“World” in 1972 was simply Mr. Ernst Leverkus (or “Klacks” as his nickname was), the Editor of “Das Motorrad”, at that time I dare say, the most professional and influential motorcycle magazine in Europe. (Not Italy, but Italy had an import restriction on Japanese Motorcycles, so was not important then) When ”Klacks” said “okay” to a bike, it was good for the Industry ! In my old photo report (to exit, go to "vorige"-"previous" <<<< upper left in your browser), on this event you can see what and how it happened.
After this successful introduction (everyone was very impressed with the TX750), we continued our tour and rode the bikes to Switzerland, to Sursee, near Luzern, the place of our Swiss Yamaha Distributor, Messrs. Hostettler. In view of the expected usage of the TX750 in Europe we wanted to ride the TX750 together with a BMW R75/5 and a Honda CB750K2 over the Alps.
Everything went fine, although the weather was absolutely horrible. Rain, fog, sleet, you name it and we had it. I was wearing a Barbour suit, so I was wet outside and inside.... and my old Cromwell helmet also did not help very much. Oh, how lucky are bikers today with good clothing and heated grips on their luxury motorcycles !
Several oil-engineers have assured me later that if modern 4-stroke motorcycle oils had been available in those years, Yamaha would not have had any recall.... And also Honda would not have had their camshaft and camchain-tensioner problems as another example. But if... does not help.
So the final TX750’s had an enlarged crankcase sump, adjustable balancer chain, oil cooler, different gaskets, changed chain adjusters and literally hundreds of others small modifications.
One of the two TX750 machines that had arrived in October 1972 already (pre-production bikes) was already used for the now defunct Zandvoort circuit 6 Hour race in Holland in the Summer of 1973. Rider was “Texas” Henk Klaassen, a very competitive rider of that period. “Texas” Henkie was always dressed as an American (you have guessed that already) and I think he came home 6th in the event.
We ran the 2 prepared machines only twice, in de French Bol d’Or 24 in Le Mans and during the Thruxton 500 miler in the U.K. One machine was piloted by G. Maison and J. Bertsch (I think they were both French Motorcycle Policemen) and the other machine by Peter Davies and Pete Lovell, both well-known long distance riders in the U.K. at that time. In the Bol d'Or both bikes failed during the night because of snapped cam-chains. Compression and valve lift from the race camshafts was too much..!
No, No, do not ask me! I really have not hidden this Porsche-Yamaha in my workshop. I believe both bikes were shredded.....!
I wonder if the beautiful girl still wears her fashionable coat, 35 years later....!
On this picture you see on the extreme left Mr. Jean-Claude Olivier, then and now still President of Yamaha Motor France, next with the light sweater Peter Davies and in his racing gear Pete Lovell.
The Thruxton 500 miler was run in lovely weather but I do not remember the results for the TX750's. I met so many friends over there. The Swedish Journalists were there from Allt om M/C and MC Nytt magazines. I have those pictures somewhere!
And this is the very last start after re-fuelling i realize now, of the Race TX750....