Thanks to Adam (AV430) who sent me the files, I uploaded two wiring diagrams for the John Deere 140 serial numbers 30000 & up. Both are probably the same, but one is dated 1970 and the other 1973.
John Deere 140 Wiring Diagram S/N30000&UP 1970 - Manuals - Garden Tractor Talk - Forums
John Deere 140 Wiring Diagram S/N 30000&UP 1973 - Manuals - Garden Tractor Talk - Forums
EDIT: Due to copyright issues, JD made us take all manuals down.
Edited by KennyP, December 23, 2017 - 02:54 PM.