recently put a new head on my '05 450r. new oem head, oem valves, springs, retainers, ect. i noticed that my bike was hard to start when i kicked it hard, but when kicked slowly, it turned over (like the auto-decompression was malfunctioning) also there what seemed to me like excessive valve train noise. i took it apart tonight and noticed that there seems to be lateral movement on my decompressor arm inside the the journal on the top of the cam holder assembly. i never noticed this before, but never paid much attention to it either. is this normal? could this be the source of my "excessive noise"? i searched and came up with this thread http://www.thumpertalk.com/forum/showthread.php?t=235801&highlight=decompressor+play but it doesnt really say anything. I checked my timing, i thought possibly it was off a tooth but nope, its dead on. checked my valves, my intakes are spot on, but the exhaust side is tight. out of clearance for sure, but the decompression arm is within spec of the rocker. if the exhaust was tight then that means the engine isnt having problems expelling the exhaust thus meaning that it is not the source of my hard starting? i know thats a lot to read, but to recap: auto-decompressor arm wobble normal? tight exhaust valves cause of hard starting\kickstarter hard to move @ TDC? which of these (if any) do you think is the causes of my excessive valve train noise?