Take your R1 out of the garage.
Tools required:
1. One (+)Headed Screwdriver.
2. One 5mm Allen Key.
Note: All 5mm Allen bolts carry a tightening Torque of 7Nm. You do not need a paddock stand for this operation.
The procedure is enumerated below:
1.Take off the seat by removing the the two Allen bolts. The Allen key required is 5mm.
2.Removing the seat will give access to the +headed screw which secures the matted side panel. There is one on each side of the bike. Unscrew it and slide it forward out of its grooves as shown here:
3.Removal of this panel will give access to the Allen bolts of the tank on either side. 5mm Allen key to unscrew these bolts:
4.And a similar Allen bolt to be unscrewed at the head of the tank under the yoke:
5.Lift up the tank from the front, it will roll on its hinges still attached at the rear. Prop up the tank with a can and you will see the Air Filter box, black in colour, secured with 9 +headed screws. Unscrew on opposite ends, a little at a go till all of them are undone.
6.Lift up the top of the Air Box and you will see the Air Filter, the intake manifolds and other interesting stuff!

Lift up and remove the filter as shown in the diagram above.
7.Take a new K&N filter (Which is my case) or take OEM filter, I really do not care, make sure it is a new one or a clean one... Notice the two projections on the underside of the filter.
These two projections fit into the notches shown below
Fit the projections into these notches, matching the grooves at the rear and then at the front. With a little practice this becomes easy. It is not easy at the first go. But believe me, it becomes REAL easy getting your hands dirty a little bit.
8.Put back the Air box cover;
set the grooves and the screws in the rear first, then set the rest of it. This will make it easier. Tighten the 9 screws.
9.Reverse the process from Step
4.
I hope you managed to follow the instructions. Try it out, it is fun. Please feel free to ask for any details. Next, in a few days we will show you how to clean a K&N lifetime filter.