I have a really nice exhaust camshaft that I set up between my lathe centres with a dial gauge to check the lift and it comes out as 0.178". This is 0.005" under the service limit. Does anyone know how thick the hardening is on the lobes? I've seen other posts on the subject but no definitive answer. The FSM states that the exhaust cam is hard faced and when I've encoutered this previosly it's been quite deep and tolerant of this degree of wear, but with these bikes I've no idea how far it goes. This where a scrap cam would be handy to see how far it penetrates on the lobe.