If it runs, thats half the battle. But, the old KDXs are near impossible to find parts for. I have 2 80 and 1 81 Suzuki PE400s and parts are tough to come by for them. Ive been lucky finding stuff on Ebay. I was also lucky that the one 80 is in near mint condition and the 81 was ridden very little so they needed next to nothing parts wise. Im rebuilding the other 80 so I can race the vintage class in our enduro series. Id like to add a KDX400 to the collection, but it has to be in very good condition for me to consider it. Good luck with it if you decide to get it! Post some pics too.