Normally, the turn directional switch is the first to fail, it's usually easier to replace the switch assembly than to repair as all of the parts are usually in pretty bad shape. If you go to eBay, a seller lamontsanford in Austin ,Texas has a fair amount of R65 parts up for sale, can't remember if he has a switch available. Just checked eBay, and he does have a switch for sale it's at about $12 right now. Don't let the price get too high if you do bid, as a new one is around $70 or so.