I've just acquired a second hand pair of pedals and they are spinning very freely, which digests to me that they need grease.
I've never serviced pedals before but I don't think it should be too hard, as long as I can undo them to get in.
The pedals have a dust cap, which I've taken off. Then there is a bolt that I need to undo, but it is extremely tight in both pedals. Before I really apply maximum force I want to be sure if it is likely there will be a left handed thread and, if so, which pedal will have it. I assume the left might but expect someone will know for certain!