John Deere SB14 no spark

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  #1  
Old 07-29-15, 10:41 AM
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Question John Deere SB14 no spark

I have an old green John Deere SB14 that has no spark.
Kawasaki engine FB460V-RS01
It was probably manufactured in the 70s.

I'm guessing it would be either the coil or the trigger.
How can I test the trigger and the coil to see which one is at fault?
I can't buy the parts direct from Kawasaki, because it's a John Deere mower.
And of course John Deere wants a lot of $$$ for their parts.

The John Deere part number for the coil is AM116375 and the trigger is M131992.
 
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  #2  
Old 07-29-15, 12:19 PM
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After checking your part numbers.....the part is different. sorry


If you need to buy a new trigger get the replacement from Rotary it works and is about $20. Have a good one. Geo
 

Last edited by geogrubb; 07-29-15 at 12:23 PM. Reason: Error
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Old 07-30-15, 01:07 AM
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I used to have test data to ohm the coil and igniter, but I'll have to do some digging to find it.
 
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Old 07-30-15, 08:44 AM
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Test data on the coil and igniter would be very helpful.
That way, I would know which part is at fault.
 
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Old 07-31-15, 07:21 AM
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I agree with geo on the rotary ignitor also. (part # 9334)

In my experience I have never changed a coil, it has always been the ignitor.
 
  #6  
Old 07-31-15, 08:33 AM
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I understand how to check the coil.
But I'm a little confused on the trigger.


Am I supposed to reverse the polarity on the meter when checking from A to B, to take 2 different readings?

Thanks!
 
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Old 07-31-15, 09:58 AM
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Thanks BFHFixit, that's the diagram I was hunting.

Yes, I think you reverse the polarity. I agree that normally the problem is the igniter, but every once in a while it's the coil.
 
  #8  
Old 07-31-15, 06:49 PM
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BFHFixit - Thanks for the diagram!

Hey Cheese - I am also a fan of Ayn Rand! :-)
 
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