just purchased 1986 interstate , 11000 original miles bike has been in storage a long time immaculately cared for, show room condition, what should i have done prior to riding??? have been told change timing belt and have all fluids changed?????? tires seats and all no cracks armor alled once a month while bike was stored? only issue I can find is radio lights up but doesnt play, it finds stations and lights up stereo but no sound??????? any advice will be appreciated??? thanks dave