[Foxpaw]

You should be fine as long as you keep track of what goes where - but I don't know what sort of improvement you can get by taking it apart and cleaning things. As far as I know the coils are not really a part that suffers much wear given that it has no moving parts. I'm not sure what problem you are trying to rectify but I somewhat doubt that your ignition system is to blame. When the ignition fails, the symptoms are usually very noticeable. (sputtering, shuddering, etc.)