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Discussion Forum

Kohler CV14S has intermittent spark

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Bob Longenecker

04-04-2001 09:37:45

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My Craftsman Lawnmower with a Kohler engine (model #CV14S) has an intermittent spark. It will start, then run for approximately 5 minutes and then quit. When I attempt to restart the spark is gone. If I let the mower sit for a day, it can then be started. This is a very consistent pattern.

Any suggestions will be greatly appreciated

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04-07-2001 03:16:06

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 Re: Kohler CV14S has intermittent spark in reply to Bob Longenecker, 04-04-2001 09:37:45  
had exactly same problem,clue is runs fine till warms up,replaced coil(magneto),solved problem.when coil warmed up it shorted out.

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Bob Longenecker

04-09-2001 05:24:58

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 Re: Re: Kohler CV14S has intermittent spark in reply to wrenchman, 04-07-2001 03:16:06  
Thanks guys - that was it - replaced the coil (magneto/ignition unit) and all is fine. I appreciate the help.

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Bob Longenecker

04-05-2001 07:31:34

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 Re: Kohler CV14S has intermittent spark in reply to Bob Longenecker, 04-04-2001 09:37:45  
Jim: Thanks for the response. Yes - it is an electronic ignition.

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Jim S.

04-05-2001 07:15:37

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 Re: Kohler CV14S has intermittent spark in reply to Bob Longenecker, 04-04-2001 09:37:45  
Bob, my danged book is at home and I'm at "work"!!! So I don't know if it's electronic ignition or not.

Anyhow, here's stuff to check:

1. Bad plug wire.
2. Loose/grounding connections in kill switch circuit.
3. Bad condenser (point ignition).
4. Bad magneto.
5. Bad electronic module/magneto.

Hope this gets ya on the right track. I'm just gonna have to break down and buy TWO SETS of books!

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09-30-2003 05:09:51

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 Re: Re: Kohler CV14S has intermittent spark in reply to Jim S., 04-05-2001 07:15:37  
You forgot to list one thing on your list of things to check.

A shorted winding in the stator can also cause the tecumseh ignition modules not to spark.

Or even a bad brush plate on an electric starter can rob all the voltage from the ignition system and cause this same problem.

I suspect the stator is bad and not supplying full voltage to the ignition module.

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David Shinn

03-11-2004 13:57:57

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 Re: Re: Re: Kohler CV14S has intermittent spark in reply to Kevin, 09-30-2003 05:09:51  
Is a CV14S a pull-starting engine? Also, is an ignition module related to the coil? What is the model number to the coil for a pull-starting engine?

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