Glad you solved the problem. you can follow the wire from the fuse to see where it goes.
ahha,,..i have a diagram.
The Y/R wire goes to the speed limiter and electronic control. The double B/W wires - 1 goes to the starter switch and the other goes to the speed Limiter/E. control (same as the Y/R wire)
The 3 red wires - 1 goes to the fuse in the MPEM, another goes to the battery, the single on the end goes to the starter.