Hello. I am a new member but have been reading the info for a while. I recently acquired a 1980 cm400t with 6000 miles. Some rust from setting in a damp garage but overall not to bad. The bike needed the carbs cleaned and jets and o rings replaced. It runs well with no unusual noise. My only concern is while coming off the accelerator there seems like a lot of backlash. With the bike on full stand and the engine off there is backlash equal to the length of a chain link while in gear. All gears about the same. This may or my not be an issue but it does appear to be excessive. All fluids changed and likewise filters. Any opinions? Thanks in advance.