I am borrowing a friends riding lawnmower and another friend of mine says the spark plugs are probably out. Where do I find them so I can see if that's what it is?? It's a Troy Built 19 Hp/ 597 cc Twin Cam Kohler... with a 42" I have no clue where to even start looking. My husband is out of town working and I'm lost!! Please help ASAP!! I've tried to Google it but, can't find anything on it. Please please please help me!! I don't know what else to do.:confused:

Find a black wire about one forth in. thick and at the end of the wires is the spark plugs

I looked and everything like that just has a bunch of wires in it...