Seems like the bushings on the three bolts that holds the front adjustable pulley are worn out, I need to replace those bushings and while at it, will replace the spring too. Any one knows where to buy those items? The front pulley seems to be off from the other pulley, is not aligned, any one know how to align this pulley? I bought this 610 no too long ago and it was working very well until now, it works fine for about 10 min. then it is hard to move, forward/reverse, noticed the belt slipping, adjusted thye spring but it worked fine for some time, then the same problem. By the way, replaced the contact points/condenser for electronic ignition, works very well, cost around $60.00. Thank's again!