I removed a spark plug and could not get the new one to thread properly. Upon inspection of the threads, I saw a small wire-like objects protruding from the spark plug hole. I attempted to remove it with pliers and found it was a bushing for the original plug. Has anyone seen these used before. I'm new to small engine repair. If this is common, will an autoparts store carry a new bushing? If not common, I'd assume removing the head and having another bushing drilled and tapped is the only way to fix this problem?
