Weekend Freedom Machines banner
Cancel

John Deere 140 No spark

8517 Views 34 Replies 8 Participants Last post by  lisle, 
N
Ive got an early i believe John Deere 140. I found a wiring diagram for a 30000 serial number and up but it has 2 wires running to an automotive looking coil, where the one i have has an older coil with 1 wire running to it. I would go get the serial number but its late and its out in the shop...

Ive got no power to the coil when i turn the key on, but when i crank the engine i do get power pulsing to that wire. Would that suggest a bad coil? or should the coil have more constant power.
Reply
Save
Like
1 - 1 of 35 Posts
I
Hi Matt
Welcome, I'm going to suggest a bad key switch or that it is the wrong key switch. When I've had the same problem as you described it was the key wired wrong for the tractor.
Reply
Save
Like
1 - 1 of 35 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Weekend Freedom Machines
A forum community dedicated to Vintage John Deere Tractors owners and enthusiasts. Come join the discussion about classic restorations, references, performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
Hydrostatic Drive Tractors Gear Drive Tractors John Deere and Allied Attachments Round Fendered Tractors FOR SALE
Top