electric diagram for 1985 Uaz

I have a uaz 469 made in 1985 and I need to find a wiring diagram for this car. I found an old wirng diagram corresponding to the first uaz cars built in 70s and a new diagram for recent uaz cars built in 90s.
My electric wiring, completely original, don't correspond and i can't found the path of a wire with burnt sheath. It begin from the starter and I don't know where it goes. please help me!