I've got an 04 Kawi EX500...and installing my exhaust yesterday, I noticed what looks like a sensor/sending unit in the bottom of the oil pan. Dangling next to it is a loose, single wire with a fitting on it. It looks like it's supposed to go onto the sender, and be held on with a nut, but there's no nut in sight. What could this be used for? It's been disconnected for several days now....possibly since I first got the bike. No indicator lights or anything are lit, and the bike runs fine.