Ok. Thanks for clearing that up for me. I didn't fit the dyna s, terry from Australia kindly did for me a few years ago. But I live pretty far away from him now unfortunately. Just out of curiosity- what pages in manual is the valve clearances adjustment explanation well described? I think I spotted the cam chain tensioner part in the supplement notes part. Could you help here please or could you get someone else you know with cb750 four to respond please to my query.