Nice, pity the person you bought it from didnt know how to build it correctly and has made a mistake. the belt tensioner in the rear gearbox is attached to the wrong belt, so needs to be turned around so the bearings hit the rear belt as the rear has two tensionsers (one underneath and one above) and the front tensioner is attached to the top deck.
Also welcome to the club, Ive had four, gave one to a mate in Wales, one to a mate in Chelmsford, one prototype new and unused I sold recently which paid for my new bathroom and the other prototype I still race and is somewhere on the Lazer ZXR forum. Link to some pictures
http://www.petitrc.com/_forumphp/sho...ght=lazer+zx-s 