Welcome to the 1971 Yamaha HT1B-MX Forum. Feel free to post anything related to this model in the category. The factory color was called Competition Yellow. The USA Vin range was HT1-000101 to 023405. Anything new, will be added to this section. If you see any errors, please contact me privately. There were many errors, in the early Yamaha literature. I will make some error's of my own.             

                  1971 Yamaha HT1B-MX Specifications

            Model 1971 Yamaha HT1B-MX

   Dimensions:

Any new parts, for the 1971 Yamaha HT1BM, will be added here.