Hey guy’s. I just synchronized my carburetors the other week like I have done many times before and now the bikes runs perfect for an hour, but after that the thing won’t rev up past 11000rpm? If you hold the throttle wide open it just sputters and holds at 11000rpm? I ran some injector cleaner through it but no luck. Is it possible that some crap is hanging something up, and if so why does the bike run fine for the first hour? If you can point me in some direction it would be greatly appreciated.