It should be covered somewhere, but I will recap.
Under the back seat, from memory there are 2 bolts holding the seat in along the front and one where the seat belt clickers are. Remove them and the seat, you dont have to remove the side pads over the wheel arches.
Then you will see the tank cover plate, spray the bolts with crc or rp7 , wd40. if you dont and try to loosed them , there is a good chance you will brake the head off of the bolts. For some reason they are fragile. Same goes for tightening them , don't over-tighten.