There's a Rekluse auto-clutch for sale on eBay

[d2w]

http://cgi.ebay.com/ebaymotors/Gas-Gas-Rekluse-Z-Start-Auto-Clutch_W0QQcmdZViewItemQQcategoryZ35618QQihZ007QQitemZ170087395717QQrdZ1QQsspagenameZWDVW

He says it's for a 00-06 GG 2-stroke (less the 125).

I've got no affiliation with the seller.

Dale