ok the problem is with the variator,it either has jammed up due to being dirty with oil and rubber from the belt or the rollers have jammed in sideways.take the transmission cover off and remove the nut on the crankshaft that holds the variator on and take the variator off and have agood look at it clean it and replace any worn parts especially the sliding plate guides and the rollers(3guides) (6 rollers).
adam bike doctor, June 2010