Posts asking a question about maintenance should go in the Technical Help subforum.
Posts that are a how-to for a one-off mod, or something really cool but unlikely to be a common task that anyone else would attempt should go in the Gallery subforum.
An example of an excellent how-to is EddieC's guide for Adjusting the Combi Cable or Adjusting the Valves. Please format any new topics in this thread similar to Eddie's guides, including lots of pictures.
If you have a question about a how-to, do not create a new thread. Please reply to the thread with the relevant guide if you have questions. It doesn't matter if no one has posted in the thread in months or years -- bump that thread and ask your question there to keep the content relevant and consolidated, to make finding answers for future readers easier.

From here on out, I'm going to manually move threads that are not relevant how-tos to ensure this subforum is as helpful to new readers as possible.
As always, if you've found the content of this site is useful and saves you time and money, feel free to support the site by donating at the link at the bottom of the page.
