Just been checking valve clearances on my 06 Daytona. Not done this myself before but using Muddy Sumps excellent video I managed to do it. All the inlet valves were within spec but on the No3 Cyl the exhaust valves were 0.22 and 0.23 with the lower range according to the manual being 0.275. So my first question is are they far enough out to bother re shimming? Secondly when I hand crank the engine at one point there is a 'clicking sound' on the cam chain and the chain tension drops at the mid point between the camshaft sprockets. As I continue to hand crank there is another click and the tension returns. The engine was running fine previously. I can't see anything to suggest the cam chain has jumped a tooth. When I first hand cranked the engine (using a socket) I did initially and inadvertently turn the crank anti clockwise but no more than half a turn of the socket. Just wondered of any one had any ideas on this. Many thanks in advance.