For K7M engine air filter replacement do the following.
(You will need a Phillips screwdriver)
1. Lift up the air filter drain retainer bracket...
2.... and unfasten the latch.
3. Unfasten the rest of the clips in the same way.
The air filter cover is held by four latches.
4. Turn out five screws of fastening of a cover of the air filter...
5....and remove it.
6. Remove the filter from the housing.
7. Install the parts in the reverse order of removal.
For K4M engine air filter replacement do the following.
(You will need a TORX T25 key)
1. Unfasten the rubber strap (collar) fixing the air path resonator...
2.... and slide the intake silencer off the filter cover.
3. Raise the muffler up.
4. Remove the tip of the air intake hose from the holder...
5.... and remove the intake silencer.
6. Remove the two screws securing the filter cover.
7. Pull the cover aside and remove the filter.
8. Install the air filter element in the reverse order of removal.