777,
I have a couple of manuals I am not going to use any more. A '92 Model 140 manual and a 602/603 service manual. I'd be glad to send them to you for postage. There are a few wiring diagrams in there. Also vacuum diagrams as well. Nice to encourage the younger generation to keep the tinkering hobby going. If you don't need them pass them along to someone else. Send a PM with your address.

Chuck