Help with mystery stud, please

skip49

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May 23, 2016
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I’ve got a Hustler Raptor SD, with the Kohler PRO, 25 HP, KT740.
I just found a stud, about 5/16 X 1 5/8”, with a nut still attached, laying on the frame plate that the engine mounts on. The stud itself apparently vibrated out of its resting place.
It was almost directly under the spark plug, on the left side of the engine.
Can someone tell me where it came from?
Btw, the part of the stud that would have been screwed into something was fairly clean, so I’m assuming it’s a rather recent event.
Thanks to anyone.
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skip49

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Joined
May 23, 2016
Threads
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Whoops, looks like I found it. Appears to be one of the two, bolting the exhaust to the engine.
 
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