1972 john deere 400 no spark
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farmboy186
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- Location: Canada
1972 john deere 400 no spark
hey i have no spark on a 72 john deere 400, its in really good shape and would like to ride it this winter, its been stored in a barn for years, i tried cleaning the points and magneto pick up, still no spark, i was gunna try new coils but wanted to know other things to try before i spend the money on new coils
1974 John Deere 300 x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2
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Matt
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Re: 1972 john deere 400 no spark
Did you rule out that it's a wiring issue in the sled by disconnecting the harness from the engine?
Matt - JDsleds.com Administrator-
farmboy186
- Posts: 76
- Joined: Tue Jan 15, 2013 7:52 am
- Location: Canada
Re: 1972 john deere 400 no spark
yes i did
1974 John Deere 300 x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2
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Matt
- Posts: 4747
- Joined: Wed Jul 13, 2005 12:00 am
- Real Name: Matt
- Location: Coopersburg, PA
- Contact:
Re: 1972 john deere 400 no spark
If it's no spark at all on both sides, you may want to go through all your connections with a fine tooth comb and make sure everything is clean. You could have 2 bad coils but it could be something simpler.
Matt - JDsleds.com Administrator-
BlazinC5
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- Real Name: Devin
- Location: 47.69429555,-117.27789056 , Spokane WA.
Re: 1972 john deere 400 no spark
I have the same issue on my 500. Both holes dead. I haven't looked anything over yet. But I am interested in what you find as the culprit. 
1975 JDX8
1972 500
1972 500
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400brian
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- Real Name: James T. Kirk
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Re: 1972 john deere 400 no spark
Points. Pull them out and make sure they are clean, and that they will pass juice.
'09 Vintage Challenge Survivor, and I wasn't late for supper!
'10, '11, '12, '13,'14,'15,'16,'17, '18, 19, 20, 21, 22 Vintage Challenge Survivor !
72 400 restored, Father bought new in '71
73 X8 restored
'74 340 green machine
'74 X8 9 time VC finisher
'78 Spitfire in progress
2 '75 340S 1 running, one on deck
'78 LF 440 future CC clone
'73 Skiroule RTX 440, 500 mi.
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farmboy186
- Posts: 76
- Joined: Tue Jan 15, 2013 7:52 am
- Location: Canada
Re: 1972 john deere 400 no spark
tested both the stator and coils, coils ended up being bad, tried 3 more sets off motors around my house and there all bad to, looks like im getting new coils, cleaned the point to while i was in there and with the new coils it has great spark and runs amazing now, thanks for the imput! Cheers 
1974 John Deere 300 x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2
1974 John Deere JDX4 Special x1
1975-77 John Deere 300 x4
1976 John Deere Cyclone x3
1978 John Deere Cyclone x1
1980 john Deere Spitfire
John Deere Sportfire x2
John Deere Trailfire x2