Well, after replacing both belts, the Yamaha K-1020 will play, but will not FF or REW, os after Larry telling me what I was looking for, I located the tire, and with my glasses on it is obvious that the tire is dry rotted. It has cracking all over it, os I am guessing that is my problem. I am going to order tires for both the K-1020 and the K-1000 and I think..........if I can sucessfully change them..........I might be in business. They both act the same way. The function (FF or REW....and PLAY in the case of the K-1000) when depress will try to work for about a second, and then the function clicks and will disengage..
Think that is the problem....but we shall see. I hope I can get thes decks working before I wear the screws out...
Thanks to Larry and everyone else who has offered advice...