do you think that if you ride in dusty situations that the k&N filters let dirt through? I just don't want to rebuild my engine.

 

Run a pre filter on it if you have any worries.I run one on my 425 and it seems to do ok.

 

Yes it will.Try holding your K&N up to the light,then do the same with a foam filter.Do as ftwflh recommended and it will help quiet a bit.I use to run K& N but after my rebuild i am going with a foam filter.Mainly because every time i get in from the dunes and clean my filter there is sand inside the filter.Hope this helps.

 

K&N filters which are properly cleaned and oiled (and dried), and pre-filtered, should do a fine job, if you want the most free flow.

Most people dont give a K&N filter the type of maintinence they require, and as a result, clog the airflow, which is opposite from what they are trying to achieve.

If I always rode in a dusty area,,,I would not use a K&N. Maybe if I was racing,,,,but not for general use.

 

Like the others said, maintain them....that means read the directions before you throw them away. And always run an Outerware, preferably the water resistant unit.

 

are you guys running open elements or a K&N in the stock air box? and what type of riding do you do? (woods, dunes, ect)

 

Slip-ons. All kinds of riding. Works excellent with the proper jetting. Take the time to check the entire range, and you won't believe the difference in the machine.

 

No airbox with a K&N with Outerwear.I mostly Dune and have had no problems.
late,zubbeyboy

 

Mine and a Friends K and N is passing dirt after paying close attention to maintenance. I also tried a K and N on a previous machine and did not find it produced as much power as good as a clean foam filter. I see Rath has a foam filter and I am calling tommorrow to get one! Once they start using K and N's on high output dirt bikes, I will consider retrying again. I don't want to give my new machine a steady slow diet of particles. If I can even see a little, there is alot going by that I can't see.