Kohler CV15s Problem

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  #1  
Old 05-18-08, 06:01 PM
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Kohler CV15s Problem

Hi,

I have a JD LT155 with a Kohler CV15S in it. All of a sudden it started belching black smoke and then lost almost all of its power. I checked the oil, and it seemed too high, though I suppose it could have been contaminated with fuel. If this was the problem, it was running for quite a while this way just fine. The spark plug was carbon fouled. After draining the oil and replacing, I tried to restart, and just got a single "BANG" and some smoke out of the muller. I did a carb kit, replacing the gaskets and needle. I tried to start again with the same result.

I don't really know what to look for. What failure would cause sudden black smoke and power loss?

Thanks for any ideas,
 
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  #2  
Old 05-19-08, 12:22 AM
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The black smoke is from too much gas. Sounds like the carb flooded the engine. Did you replace the spark plug?
 
  #3  
Old 05-19-08, 06:42 AM
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I had just replaced it a couple of weeks ago. I cleaned it up. Do I need to do it again just because of the flooding?
 
  #4  
Old 05-19-08, 11:05 PM
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Probably not, unless it is gas soaked and won't fire. I'd reccomend cleaning the carb and installing a carb kit, and see if that straightens it out.
 
  #5  
Old 07-14-08, 02:23 PM
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It may be your Fuel Solenoid is bad. Will it run if you give it a shot of gas or staring fluid? I've had one go bad on both a John Deere and a Craftsman.

To test for bad Solenoid:
Remove the Solenoid from the Carburetor and Replace it with a Bolt the Same Threads and Diameter 1/2 to 3/4' Long. Turn the High-Air-Mixture-Screw In to Seat. **SNUG DO NOT JAM** Then Reverse the High-Air-Mixture-Screw 1 1/2 Turns. Run the Engine and see if this Solenoid is Good.

Hope this helps.

Noel
 
  #6  
Old 07-15-08, 12:16 AM
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The solenoid will not cause this problem. This engine is getting too much gas. When the solenoid goes bad, it restricts gas if anything. Thanks though!
 
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