Some shock as Landreo suggests can be helpful in loosening up corrosion between dissimilar metals. The thing to remember is that the carburetor is soft pot metal so we don.t want to use to heavy a blow. Repeated taps may be better than one heavy rap.
"Life's tough.It's even tougher if you're stupid."
- John Wayne
" We hang petty thieves and appoint the great ones to public office."