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Old 08-24-2015, 08:51 PM
fobaum fobaum is offline
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Join Date: Aug 2008
Location: Ft lauderdale, Florida
Posts: 344
Kohler evc740 red hot muffler

I have a John Deere 652- R efi got it back from the dealer today for some update ? Anyways I was cutting my back yard and it was dusk almost dark , and I noticed the two pipes going into the muffler were red hot also the sides of the muffler were red hot is this normal?
any help is much appreciated , Forrest
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Expert lawn maintenance & landscaping LLC.
2015 RAM 3500 SRW LB (AISIN)
2015 f350 6.7 green gem/caribou lariat POS TRADED
2012 f350 6.7L Ultimate lariat traded
2008 tundra 5.7 d-cab -sold-
1998 isuzu diesel dump 14,500gvw
2011 grandstand 60''
2013 grandstand 36''
2014 JD 652R EFI quik trac
2015 toro grandstand 48 efi
2015 gravely prostance 36
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Old 08-25-2015, 05:14 AM
kawakx125 kawakx125 is offline
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Join Date: Apr 2012
Location: lees summit, mo
Posts: 1,066
I have one on a v-ride, and i've never seen it get red hot but i did notice that the muffler seems hotter than any other mowers i have ever used. dealer used a temp gun and determined one cylinder is about 430deg, and the other 630+. kohler specs around 500 degrees. they recommended swapping injectors and seeing if the issue moves to the other side.

I am not very pleased with this motor, its the most gutless 25hp i've ever used.
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Old 08-25-2015, 07:09 AM
fobaum fobaum is offline
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Join Date: Aug 2008
Location: Ft lauderdale, Florida
Posts: 344
I have2 mowers with these engines ones a Toro grandstand and the 652. on the Toro you can't really see the muffler its covered by a big steel shroud so I wouldn't be able to tell if it was red hot anyways I think these Kohler EFI have plenty of power I would say they're a little more powerful then my Kawasaki FX 730? I'm going to call the dealer I'll post back results also going to look into a photo thermometer
__________________
Expert lawn maintenance & landscaping LLC.
2015 RAM 3500 SRW LB (AISIN)
2015 f350 6.7 green gem/caribou lariat POS TRADED
2012 f350 6.7L Ultimate lariat traded
2008 tundra 5.7 d-cab -sold-
1998 isuzu diesel dump 14,500gvw
2011 grandstand 60''
2013 grandstand 36''
2014 JD 652R EFI quik trac
2015 toro grandstand 48 efi
2015 gravely prostance 36
Reply With Quote
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