I'm getting a ticking sound from the engine every few seconds. But this only happens when I'm accelerating hard and the engine is spinning above 6000. Does this sound like pre-ignition?
I had this "ticking sound" on my Griff but you could it hear throughout the rev range. Turned out to be one of the exhaust manifold gaskets had blown. Hopefully it will be a simple as that and nothing more sinister!