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Old 02-21-2000, 04:45 PM
GrassMaster GrassMaster is offline
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Join Date: Dec 1999
Location: Columbus, JawJa of the great U.S.A.
Posts: 447
Hello:<p> The Kohler is famous for this & they were that way 15 years ago. Even the 2 cylinder engines.<p> Lower your idle speed & adjust low speed mixture screw. The problem will be gone 99 out of a 100 times. If this is done properly & still have problems its time for a valve job!<p> I wouldn't advise shutting one off at no other speed than idle for at least 30 seconds min. Also when engine is idleing it will over heat, if let run long enough burn up engine. <p> Thats why they are called air cooled engines. The engines run best & cooler at full throttle & last longer.<p> <p>----------<br>GrassMaster - Have a nice day!!!!! Home:<br>Visit my browser Start Up Page
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Old 02-21-2000, 05:38 PM
LawnSite Member
Join Date: Jan 2000
Location: Louisiana
Posts: 23
We had the same problems with our 22hp Kohler command on an excel. I agree with homer and Grassmaster. We let ours idle for a minute before shutting down, if not it will backfire.
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Old 02-21-2000, 10:50 PM
gene gls's Avatar
gene gls gene gls is online now
LawnSite Gold Member
Join Date: Dec 1999
Location: Granville, Ma. 01034
Posts: 3,183
Why in the world would anyone shut off a hot engin with out letting it cool down. I let mine idle while I do the trimming.
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Old 02-21-2000, 11:20 PM
Retro67 Retro67 is offline
Join Date: Jan 2000
Location: Springfield, IL
Posts: 207
Gene-<p>The faster the engine runs, the cooler. I think you are doing exactly the opposite of your intentions by letting your engine idle. &lt;p&gt;&gt;John
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Old 02-22-2000, 12:50 AM
cantoo cantoo is offline
LawnSite Silver Member
Join Date: Dec 1999
Location: Ontario, Canada
Posts: 2,921
My manual says to shut down my 20hp command at 1/2 throttle. Simple, just let the engine get down to 1/2 throttle before you shut off the key.
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