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kohler engine in ac 17hp


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does anyone have an suggestion to whats wrong with my engine? It runs for about 1 hour and starts missing and acts like it wants to quit. I change the spark plugs and air cleaner check the oil also but that did not do the trick. Any suggestions would be welcomed.

thanks,

greg
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Hi Greg, well I will take a shot at it untill someone else comes to the rescue-it could be the coil as sometimes when they get hot they will cut in and out-or have you checked the fins on the flywheel to see if they are clear of grass-dirt ect. so as the air can be drawn in thru them to cool the engine-or have you checked the fuel filter to make sure it is not plugged-anyone of these things could cause your problem and possibly also cause your gas to vabor lock in one or both carbs if your engine is running hot. Also how long has your engine been having this problem?? Were the spark spugs clean or did they have carbon deposits on one or both of them? Best of Luck->jackl<->happyjack<-
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Greg, You're solution is simple; get rid of the Kohler and get a Briggs!.... Seriously, it sounds like a high voltage problem with the coil pack or plug wires 'breaking down' or shorting out when up to hot operating temps,I'd check there! Very good Jack, I tend to agree with you on this one! ...But wait,we haven't yet heard from "Mr. Kohler" yet,Let's see what he says! dlc
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Jack thanks for replying I'll try your suggestions and let oyu know if they work. I just put brand new spark plugs in. This problem has been with me for almost 9 months, but for some reason it would straighten itself out for awhile and then reoccur. thanks again, greg
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Jim thanks for your advise. I'll let you know if I get the old boy going again or if I have to sell it and buy a goat to do the grass. thanks, greg
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dlc I think I would have to get a goat before a briggs, because i probably can keep the goat running longer. Just kidding, thanks for your advise I'll give it a whirl and see if you and Jack solved my problem. I'll let you know hopefully sometime this weekend. thanks, greg
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I'm not sure without looking at it. But I'm going to give your first suggestion a try first. thanks,greg
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Greg ,this could be tough....could be water in you fuel or contamination,dirt in the fuel filter or carb bowl .....it could also be a sticky valve....I,m not sure how old your engine is or if you have stored it for long period of time ,but try dumping the fuel system and cleaning the carb ,this would be the next place that I would start ....G.L. Jim
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  • 2 weeks later...
jack just to let you know that I ordered the parts from a little hardware store in town. That was a week ago and the parts still haven't shown up. So I am going to order them from the John Deere dealer or I might try to get them from Granger. So for now I'm just waiting to see who can get them here faster. I'll let you what happens when I get the parts which will be hopefully soon. Greg
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dlc just to drop you a line to tell you I ordered the parts but they haven't shown up yet. I told the guy at the hardware store that I could of when to kohler and got the parts quicker. I'm either going to order the parts from the John Deere dealer in town or from Granger I think they can get them the next day instead of waiting a week from the hardware store that I I ordered them from. I'll keep you inform on what goes on. Greg
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  • 2 weeks later...
Jack the coil was the problem. I finally got a new coil and put it in. The grass is finally cut but not baled yet. Thanks for all your help, I know who to count on next time. Greg
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dlc thanks for your help in getting the old girl up and running. It was the coil and thanks to you and jack my wife is letting me sleep back in the bedromm again, the garage was getting hot! thanks, greg
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