Hi all, I have a foreman 450(1300 miles)that developed a ticking like noise like valve clatter. I pulled the valve cover and checked the valves. .006 right on the moeny. It seems as though when i pull the engine over the valves go down. It is when the valve comes up there is a click. Both valves do it just as the valve comes off the highest part of the lobe. Could this be a loose cam chain slapping sound. What is the procedure of adjustment of the cam chain? Also what would be the torque specs for the valve cover bolts. Thanks