One of the [problems with the kick starter lever is it huge size. Also, as you tighten the bolt, the forward hole bends back and up, causing the bolt to bend. Also the bolt is not big enough to properly engage with the machined "groove" in the kick start spindle. Mine is still wrong but now does not com loose, even though it has flogged outs splines like they usually do. I set mine up in the lathe and bored out the forward hole 7/16 inch. I then made a short tube which was a neat fit on the bolt and was 7/16 in od like the new hole I bored in the kick start lever. Now when I tighten it up, the bolt locks the lever solidly onto the shaft. When removing the kick start lever, I do now have to remove the bolt and drive the bush out but that is easy to do.,. I don't have to keep tightening the bolt though. Ideally I should heave bored the hole at an angle so that when the kick starter boss bends to fit the shaft splines, the holes would be inline. That is a future problem to solve if necessary. By having this secure method, I was able to eliminate an oil leak from the g/leaver outlet on the g/box. Too much info for this thread.