Several service manuals available to us in the United States, including the CSC Service Manual, give the following specifications for valve lash.
Intake valve: 0.04 - 0.06 mm
Exhaust valve: 0.04 - 0.06 mm
I have been using these specifications for over 10,000 miles, and I am sure they are correct.
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894