Hello, I have Sherco 3.2 4T 2008 for about a month and it's my first trial bike. It is normal that I can hear the clicking of the valves? I checked the valve play on cold engine and on intake was approx. 0,11 - 0,12 and on the exhaust valve was approx. 0,16 - 0,17. I have other 4T like Honda and Husqvarna and I've never heard so loud clicking. Thank you : ) Btw. Can you someone tell me, how to get the valve cover off without having to demount the whole engine?