1. 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

All 2st K&N air filter

Discussion in '2 Stroke' started by marcmo0, Jul 17, 2011.

  1. marcmo0 Husqvarna
    AA Class

    Location:
    Auburn, WA
    Husqvarna Motorcycle:
    09 WR300
    Other Motorcycles:
    Yamaha YZ250
    Anyone using one of these? What do you think about it?
    marcmo0, Jul 17, 2011
    #1

  2. Aviduser Husqvarna
    AA Class

    Location:
    BC, Canada
    Husqvarna Motorcycle:
    08 cr 165
    Heard alot of bad things, they don't filter as well as a foam filter. Not worth the risk of toasting your motor for a very small performance gain.
    Aviduser, Jul 17, 2011
    #2

  3. marcmo0 Husqvarna
    AA Class

    Location:
    Auburn, WA
    Husqvarna Motorcycle:
    09 WR300
    Other Motorcycles:
    Yamaha YZ250
    Good to know. Thanks!
    marcmo0, Jul 17, 2011
    #3

  4. smoke229 Husqvarna
    A Class

    Location:
    IL
    never actually seen one on a dirt bike, never talked to someone that has run one, might have to go with the rest of the herd and stay away from them!
    smoke229, Jul 19, 2011
    #4

  5. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    I had one years ago on an enduro bike. I thought that it let very fine dirt through, even though I tried my best to wash it properly and use plenty of oil on every millimeter of gauze.
    Dirtdame, Jul 19, 2011
    #5

  6. Jhunter Husqvarna
    AA Class

    Location:
    Atlanta
    K&N lets water through the filter... Stick with Foam...
    Jhunter, Jul 20, 2011
    #6

  7. pvduke Husqvarna
    Pro Class

    Location:
    ... on the gas...
    Husqvarna Motorcycle:
    tripple-hondo hoosk...
    Other Motorcycles:
    dozens of them, kicked to the curb
    oiled foam for DB's, paper OEM type for tow veh's.

    we've done exhastive studies here with them gause/wire filters. those things are garabage. they dont work from the get-go and get worse the first time you clean one and get really worse each time after that.

    yer engine....but i STRONGLY urge against them things.
    pvduke, Jul 20, 2011
    #7
    MR54L likes this.

  8. RLW Husqvarna
    AA Class

    Location:
    Boise, Idaho
    I used K&N on an old '84 XR350 I had for several years. When properly oiled I never had trouble with them filtering well (or water issues any worse than any other filter), BUT I had have a problem that caused me to quit using them, and that was with the rubber seal material.
    After a while the rubber seal would get hard and shrink slightly making it tough to get a fit like it should or seal well. I would have to leave it in hot sun or heat someway to get it go back on.......had same issue with a round K&N filter on a truck once as well.

    Finally pitched it and went with a foam filter, currently all my bikes have TwinAir filters
    RLW, Jul 20, 2011
    #8

  9. MR54L Husqvarna
    A Class

    Location:
    QLD AUSTRALIA
    Husqvarna Motorcycle:
    WR250
    Great for single use on a high output enginge, like a car for road use, which I run on my V8 5.4l Ford

    For dirt bike applications NO NO NO
    Stay with the oiled foam type, and you should be safe
    MR54L, Jul 20, 2011
    #9