My bike started making this faint ticking sound for a while now, it sounds like its comming from the head, perhaps the valves. There's no decrease in performance of any kind that I know of, just wonder what it is? is there a pin hole leak in the exhaust / exhaust gasket? do my valves need to be adjusted?
any help is much apprechiated, I could just ignore it but It would be good to know what it is.