jcorney
77 XS400
So my 1 year resto-mod project is done. It is running, riding, titled and registered for the first time since 1982. It seems to run fine, but I am getting a tapping or knocking sound when I give it a little throttle. It doesn't seem to be affecting the way the bike runs, but before I ride more than around the block, I would like to fix this issue. I rebuilt this motor myself. It is has the bottom end and pistons from a newer XS400 and the original cylinders and top end. When I first heard it, I checked my valve clearances. One was a little off, but barely. It sound almost like the rockers are bouncing, if that makes any sense. Here is a video of it. I would love to get your opinions.....