kohler 25hp engine, one of two cylinders firing problem

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  #1  
Old 01-02-14, 06:56 PM
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kohler 25hp engine, one of two cylinders firing problem

I have a toro zero turn mower. It developed a problem where one of the two cylinders received no spark. I replaced the ignition module. Now when it is started at low idle there is a spark. As I give it more throttle the firing decreases. When I try to put it at full throttle no spark at all. Any thoughts on what may be causing this to happen?
 
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Old 01-03-14, 05:34 PM
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I don't know which engine you have, but this sounds a lot like the diode between the coils in the kill wire is blown. This would be on the command series and later engines.
 
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Old 01-04-14, 11:18 AM
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It is a command series engine. Where is the diode you mentioned located? Thank you for your input.
 
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