How to refinish aluminum
While restoring my CL200, all the aluminum had to be refinished: the engine side covers, wheel hubs, and fork tubes. Honda originaly covered them in a clear coat to protect from oxidation, but over the years that clear coat turned yellow, and any scratches and nicks allowed oxidation to creep in and crawl around. The result was a very ugly, very tarnished surface. Here's how I cleaned them up.