Be warned its rough & missing part of the lower craddle
(Same as YZ465G & I think YZ250H YZ465H 1981 are the same or very similar)
I think someone may have been going to mount a "Thumper" 4 stroke in it & gave up
Someone may want to continue this?
Or use it to repair another
I do have another frame to get measurements off if you want to refabricate it
(The other frame is not for sale!)
Pick up from Ballarat
CASH on pick up
Neale 0427 334186
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=261215616868#ht_902wt_1255