stupid question perhaps - oil change before/after valve check?

[Ulvetanna_imp]

I would wait until after any dealer servicing is done; sometimes it works out that if you do the oil/filter first, even if you inform the service department to skip that, the technician is often on autopilot and will do it anyway. Usually the first thing they do is to remove the drain plug and filter so the oil drains while they do the other tasks. So get it in writing what will be done and what will be omitted from the service. Then when you get the bike home, do the rest of it.

You can do all of your maintenance if you are qualified, but if something breaks you will need to prove you are qualified. I think this varies with location per regulations. Here in the USA we can do all the work ourselves if we keep accurate records.