I was given a Craftsman Gt lawn tractor this week. The previous owner couldnt keep it running so he pulled the carb apart and tried his best at rebuilding it. Well what he failed to realize was that what he thought was trash was actually the main jet. He remembers something brass falling out. Now ive spent hours trying to find a part number. This is what i do know, Its a Nikki carb, part number 24 053 25. Also its a Kohler 20 hp, engine model number CV20S. An online manual shows its a .040 jet. I cant find a part number to save my life. Im hoping that some of you more internet savvy guys can help me out. Please help me out.