Removing the seat, and especially the fuel tank is a big step for someone new to maintaining their Savage/S40. It is also necessary for many mods here on the site. I looked through the entire Technical section and there is no set of complete instructions for how to do it.
Six months ago I hadn't sat on a motorcycle, and until three months ago I had never lifted a tool to a bike. Taking off the tank for the first time was actually nerve-wracking. I gleaned the various information that was scattered throughout various threads about other things to find the information I needed. I can now have both off in under five minutes.
I hope this thread will give confidence to beginners like me, to have a go. And provide a resource that experienced guys can link to when describing a mod that begins with "First remove the seat and the tank".
I was prompted to make this guide because I plan to write two more technical guides which both begin with that sentence

Comments, correction and suggestions are welcome.
The seat is very straightforward to remove. The stock seats vary from year to year and are either a two piece seat or a one piece seat.
Basically they have a connection point on the rear fender just behind the centre of the passenger seat, a connection on either side near the shockers, and the front has a plastic tab that hooks into a bracket just behind the tank.
I have provided photos of mine which is a one-piece seat with an Allen head screw at the back, and a 10 mm bolt on each side. Undo all three an the seat will lift off.
Here's the rear: