andy clark

hi im new to the site have just purchased a xs400 with matching engine and frame numbers but the previese owner never had a log book or reg have been in contact with the dvla to get the reg but they say the numbers arnt on there dater base and they wasnt very helpful , how do i find out the reg of the bike if its an import any help would be great as its at a stand still at the moment and cant wait to start rebuilding it cheers andy