Surfer,
If the stroke is 34mm, here is a complete piston kit for cheap. It may even work on the 65cc, if it dosen't uncover the exhust port. Many of the newer Husky pistons have ports above the wrist pin to allow trapped charge to escape. This also cools the piston crown from the inside.
Dave
http://cgi.ebay.com/Husqvarna-Husky-...QQcmdZViewItem