I've been reading up a bit on mc ignition systems (I have the electrical know-how of your average intelligent 19th century gentleman). Anyway, I see that people rewind their own coils, and that you can have the coil rewound for you (usually around $150 - $200). Google has failed me; can somebody explain the process, both in theoretcial and practical terms. Eg the coil on my bike seems an enclosed unit, does one cut away to get at the coil, or what? I get the impression that it's a great length that one must coil? Is there a proper way to coil it? Is there more than one complex of coil within there? -Matt (My bike failed to produce spark two days before I went on holiday (well, only *very* intermittent weak spark), have purchased an ohmeter for when I get back to it - maybe this is the problem, maybe not, but I'd like to understand this anyway).