Air filter

Hi does anybody know what the spongy thing under the air filter is in the k3, its tucked in one side of the air box.
Thanks

[BillyC]

Don't know, but mine smells of petrol.

yep, its a filter for the breather pipes that, at a guess, come out of the engine to balance the crankcase pressure.

I was also thinking of getting a k&n filter, do they make any differance

Originally Posted by alka

I was also thinking of getting a k&n filter, do they make any differance

It will make your service bill cheaper as it is washable rather than a consumable

what about performance wise

[BillyC]

Alka...

The K&N really improves the top end acceleration - but also increases the amount of noise from the front of the bike. I would challenge you not to notice it. Overall it generally improves responsiveness.

As Joe says, it's a washable rather than a consumeable filter - it costs roughly twice what a standard filter would, so it doesn't take too long to pay for itself.

Cheers Bill, I think I'm going to get one

IN the K4 manual it says the filter can just be blown clean with an airline and not replaced - is this different for the previous models or is the filter so shoddy that it will probably need replacing at the service and not withstand a good cleaning??

Originally Posted by SVeeedy Gonzales

IN the K4 manual it says the filter can just be blown clean with an airline and not replaced - is this different for the previous models or is the filter so shoddy that it will probably need replacing at the service and not withstand a good cleaning??

it all depends on how dirty your filter is. if you do lots of city work probably replace the filter if its all out in the sticks then a clean would do. tbh it all depends on the state of the filter when it comes out