Simplest way is to take it apart and scrape it with a long screwdriver. If you have a torch or are willing to soak it in gas and light it, that usually works better. Then tap it gently to knock the carbon out.
daveb
Simplest way is to take it apart and scrape it with a long screwdriver. If you have a torch or are willing to soak it in gas and light it, that usually works better. Then tap it gently to knock the carbon out.
daveb
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