Thanks to Norbert Nobbinger for correctly pointing out that the RS54s left the factory with German Amal carbs, not Dellorto carbs as I had illustrated. Close examination and pictures sent by Norbert Nobbinger helped me correct this error. It seems that most rebuilt RS54s have Dellortos which were the carb. of choice for the sidecar guys too. However, Walter Zeller's machine retained the German Amals. Great detective work Norbert, thanks, Mick.
The 1st TZ with a full race designed engine. The Yamaha TZ250H in print form. If you would like a print, please e-mail me: ofieldTN@blomand.net . You can have your race number added to your print for a small extra cost. Thanks Mick.