Air Cleaner / Air Filter

The air filter should be replaced every 12,000 miles, according to the owners' manual. Well, with the amount of mileage I was doing by commuting to work, one of the first things I did was to replace the stock air cleaner with a K&N. (I had installed a K&N on my previous bike, the Yamaha XJ600S.) To give you an idea, the stock air cleaner currently costs around £18. The K&N costs £54. It has paid for itself within two years.

It comes supplied with a warning sticker to be affixed to the top of the air cleaner box, alerting workshop mechanics NOT to throw it away and replace it with a new OEM filter!

From the K&N website: "Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty - and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED."

Now, I just check the air cleaner every 12,000 miles; and clean and re-oil it if necessary. As the K&N enables the engine to breathe more easily, it results in improved engine performance and better fuel mileage. And because the air cleaner is reusable, it is also more environmentally-friendly.

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