I picked up a 1980 Sachs at a garage sale a couple of weeks ago and I 'm trying to get everything to run. (It looks like http://mopedarmy.com/photos/brand/38/306/).
The engine runs fine and the tail light worked, but the brake lights did not. I found that one of the wires at the foot brake switch was disconnected, so I reconnected it. Now, when either the hand or foot brake are applied, the engine dies, as though the kill switch were turned on, and the rear light no longer lights.
The wiring looks very neat and tidy (see pic), and I really don't know where to begin to troubleshoot this. I pulled out the rear light assembly and the same thing happened (engine dies when brakes applied).
Has anyone had this problem, and what was the cause?
Also, any suggestions on where to start would be appreciated.