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Ariens GT19 has no spark


pmart60's Avatar
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06-12-12, 09:01 AM   #1  
Ariens GT19 has no spark

I have an Ariens GT19 tractor with a 19 Hp Kohler engine that has no spark. A friend of mine tested the coil (dual output coil) and said that the secondary side of the coil was bad. I didn't want to spend the outrageous money that a new stock coil would cost and after reading a few small engine web sites I purchased a dual output motorcycle coil. Still no spark. My buddy said that if the condenser is bad that would cause a no spark condition also. He said that if the condenser is shorting I could simply eliminate the condenser from the circuit to troubleshoot whether it was a bad condenser causing the problem. He said that if I eliminated the condenser from the circuit and that was the problem I would now have a spark. I did so, and still no spark. Does anyone have any ideas? I am contemplating buying another set of points and condenser but these were replaced not too long ago.

Pmart60

 
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cheese's Avatar
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06-12-12, 10:12 AM   #2  
What engine are we dealing with here?

Are the points gapped properly? Does the plug wire send any signal at all, a tingle?


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06-12-12, 10:37 AM   #3  
Ariens GT19 No Spark.

I don't have the engine model # handy right now I will reply tomorrow or later this evening with the engine model #. The points are gapped properly. There is no spark at the plugs or at the points as they open and close. If this is a universal type dual outlet motorcycle coil (no polartity specified) that I using do I need to add a balast resistor if this is battery type ignition on this tractor?

 
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06-13-12, 06:08 AM   #4  
GT19 No spark

Good morning Cheese,

The Kohler engine I have in this tractor is a 19 HP Kohler, Spec # 49202. It is A KT19. Serial # 1605909886.

 
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06-13-12, 06:48 AM   #5  
Check thhe plug wire, might be something wrong with it

 
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06-13-12, 08:33 AM   #6  
Ariens GT19 No Spark

If the plug wire was bad I would still see a spark at the points when engine is cranking. There is no spark even at the points.

 
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06-13-12, 08:44 PM   #7  
You can use a test light to diag this..Ground the light,, Test one side of the coil.. It should be 12v constant with the engine cranking (~batt voltage),, On the other side of the coil the test light should flash as the points open & close while cranking.. If no light, you have an open coil or shorted points & condenser,, If solid light, points are open or corroded,, Try it, I hope some of this helps..... Roger

 
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06-14-12, 08:44 AM   #8  
Ariens GT19 no spark

Thanks for the tip I will give it a try this weekend.

pmart60

 
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