So I just replaced my starter clutch. Which went out a week ago. All the parts are in the right spot on the fly wheel. Timing was lined up correctly at tdc and on the fly wheel. All put together and fired right up...and started knocking. So I took it all apart again to check the timing. Even took the wheel back off and put it absolutely at TDC. Fired it up and still knocking. It sounds like its coming from right under the rear head. I leaned it left and right and no change so I know all of the parts are installed correctly. It's not missing anything and it did not act this way before I replaced the starter clutch. It's actually running well. Just knocking. It's not the normal vstar tick either. So if it's not timing could it be valves? Anyone have any ideas?