A couple of years ago i purchased a 2002 yamaha ttr125l with a stuck choke. After researching about how to fix a stuck choke someone suggested wd40. I tried putting some down where the pluger is to hopefully unstick it. That didn't work so i did some more research and someone suggested putting coke down in there. If i put coke down where the plunger is will it corrode the metal or rust it? could you please give me your thoughts?