Fitting
instructions for an air filter are in the owner’s manual, but I’ve put some
pictures of the procedure here, along with some tips. But to be honest, it’s
pretty straightforward!
First take
the seat off (I’m sure you’ve done this many a time to store your bag of
chips/kebab under there).
Then remove plastic side panels A,B and C as described on the manual. The results look like this:
The next bit
might be easier with 2 people, but is manageable on your own.
Undo the
bolt holding down the front of the fuel tank (just behind the top yoke). Then
gently swing the tank back. Next disconnect the fuel sensor wire at the green
clip, and turn the fuel tap to the off position. Then, squeeze the clip on the
fuel hose and remove the hose from the tank, with a rag at the ready to catch
the remaining fuel. Then work the fuel hose around (with the rag at the end) to
drain any further petrol. You could always block the petrol hose with something
of a suitable size (clean pen ?)
Next remove the rear, horizontal bolt on the fuel tank (it might be easier to put it back level first) and remove the tank. The end result should look a bit like this:
Next find the rubber cover over the airbox, and pull it down off the metal lugs. Then pull the rubber piece back to reveal the top of the airbox, which looks a bit like this:
Remove the four screws, lift the airbox lid off, and there’s the original filter:
I’ve added a pictures to show what the original filter looks like:
Then whack
your K&N Replacement in, and as they say in all well known workshop manuals
assembly is the reverse of disassembly.
And the benefits of doing it ? Well obviously it’s cheaper than changing paper filters regularly if you do enough miles, and there are plenty of posts on the modifications section about different people’s perception of the performance improvements.