Why are there lots of rumors of fake parts?
Parts are made at different times thus varying in quality and specifications, also there was a transition period in the 60s, 70s, and 80s with the machinery from the Chang Jiang factory using Russian parts to Chinese parts and changes in engine design. Because of the variance on many of the parts, some parts may need slight modifications in order to fit. Some parts are hand milled, some are machined milled, some are pressed, so it all depends on when and where the parts are made; there are some variances in size and quality. We have seen frames that are from the same year that are two inches different from front to end. Chang Jiang 750 sidecar frames are hand welded and the frame jigs are different in size. Quality control is not very important for many of the guys that OEM parts. There is not much in the way of consumer protection, or standards concerning this, so some of these poorly made parts do end up in the market. The quality of parts just depends on when the product was made an
