Hello. I recently purchased an xs750, 1977, and am in the process of trying to get it running. The carbs are completely missing and I am buying parts hearer and there to assemble the missing assembly. A few people I know are telling me that the shaft drive on these made turning difficult. While I am not making any changes until I've gotten it riding and determine for myself whether this is needed or not, I cant help hit wonder how difficult it would be to convert this bike to Chain drive would be. Does anyone have an idea on this? Thanks!