If its a WR or an XC it should have the proper charging system to run lights, but theres no battery to speak of from the factory. CRs were the comp bikes and didnt have that. Have you checked out the vintage leftkickers section at CafeHusky yet? Tons of info there and a pretty sharp bunch of guys to boot!
linky>>
http://www.cafehusky.com/forums/vint...ft-kickers.63/