XV, XW and XY series engines 1 Unscrew the wing nut on the air cleaner casing end-face (see illustration).

26.1 On XV, XW and XY series engines, unscrew the wing nut on the air cleaner cover . . .

2 Withdraw the end cover with element (see illustration).

26.2 . . . and remove the cover and filter element

3 Discard the element and wipe the casing interior clean.

4 Fit the new element and the cover, tighten the wing nut.

XU and TU series engines 4 Disconnect the air duct from the end of the air cleaner.

5 Unscrew the nuts and remove the end (or top) cover (see illustrations).

26.5a On XU and TU series engines, unscrew the nuts . . .

26.5b . . . or release the spring clips . . .

26.5c . . . then lift off the top, or end cover

On some types of air cleaner, the end (or top) cover is retained by a number of spring clips.

6 Extract the element (see illustration).

26.6 With the cover removed, withdraw the filter element

7 Discard the element and wipe the casing interior clean.

8 Insert the new element then refit the end cover and air duct. Ensure that the cover is correctly seated, to prevent air leaks, before fastening with the nuts or the clips.