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

250-500cc wr300 2012 help to solve the next problem of the engine

Discussion in '2 Stroke' started by k-l-f, Oct 21, 2013.

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  1. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    wr300 2012 help to solve the next problem of the engine .
    k-l-f, Oct 21, 2013
    #1
    broken biker likes this.

  2. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    k-l-f, Oct 21, 2013
    #2
    broken biker likes this.

  3. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    Jetting too lean. Make sure you have #4 slide, 40 pilot jet, #80 starter jet, GAY needle.
    Dirtdame, Oct 21, 2013
    #3

  4. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    pilot 35-40 and main 480 . needle in the middle . what else ? this is a strange problem . hot stops working , cool - running
    k-l-f, Oct 21, 2013
    #4
    broken biker likes this.

  5. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    Try a 420 main jet.

    Make sure that the air screw is turned out 1 and 1/4 turns.
    Dirtdame, Oct 21, 2013
    #5

  6. utopia Husqvarna
    AA Class

    Location:
    Jackson, WY
    Husqvarna Motorcycle:
    WR250, WXC125
    And try the needle in the 4th clip from the top if you are at lower elevation.

    Sounds like a lean bog to me.
    utopia, Oct 21, 2013
    #6

  7. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    And if you get that all squared away, and are still having problems, make sure that there is not an air leak in the reed intake boot. Seal it with RTV or find gaskets that will match it.
    Dirtdame, Oct 21, 2013
    #7

  8. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    k-l-f, Oct 21, 2013
    #8
    broken biker likes this.

  9. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    I have exc300 2012 , it works perfectly . tomorrow I will put kin on husqvarna together with rope gas . but I doubt that this will solve the problem
    k-l-f, Oct 21, 2013
    #9
    broken biker likes this.

  10. Long_Stroke Husqvarna
    AA Class

    Location:
    Logan, Utah
    Husqvarna Motorcycle:
    2011 WR300, 2013 WR144, 2020 FE501s
    Other Motorcycles:
    1996 DR350, 2002 Aprilia Caponord
    Wasn't there another discussion about temperature and a bad stator? When the stator gets hot and expands it creates a gap/open circuit? I don't know how the ignition itself could work when the engine is cold and fail when its hot, but if the ignition isn't getting enough current it might not work properly.
    It might help diagnose by unplugging the headlight to give the ignition more current and see if that changes anything.
    Long_Stroke, Oct 21, 2013
    #10

  11. utopia Husqvarna
    AA Class

    Location:
    Jackson, WY
    Husqvarna Motorcycle:
    WR250, WXC125
    How does your spark plug look?
    utopia, Oct 21, 2013
    #11

  12. justpinit Husqvarna
    AA Class

    Location:
    Maryland
    Husqvarna Motorcycle:
    2012 wr 300
    Other Motorcycles:
    93 kx 125 with a kdx 200 engine.
    My 1 2012 would shut off as if i hit the kill switch when it got hot. Turned out to be the cdi. Could be your problem.
    justpinit, Oct 21, 2013
    #12
    broken biker likes this.

  13. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    stator good , I shot checked visually all right . the light is off
    k-l-f, Oct 21, 2013
    #13
    broken biker likes this.

  14. k-l-f Husqvarna

    Husqvarna Motorcycle:
    wr300
    Other Motorcycles:
    exc300
    insulator brown . changed and nothing has changed for the better
    k-l-f, Oct 21, 2013
    #14
    broken biker likes this.

  15. K5PL5 Husqvarna
    Pro Class

    Location:
    Palmyra, PA
    Husqvarna Motorcycle:
    2012 WR300
    Other Motorcycles:
    03 Suzuki SV1000/73 Honda CB350
    Did you experience this problem before the engine blew up? Is this the first time youve run the bike after rebuilding the engine?
    K5PL5, Oct 21, 2013
    #15

  16. justpinit Husqvarna
    AA Class

    Location:
    Maryland
    Husqvarna Motorcycle:
    2012 wr 300
    Other Motorcycles:
    93 kx 125 with a kdx 200 engine.
    Iv'e never heard of an intermittent jetting prob. Plus if it was jetting the engine will generally change rpm to some extent. The cdi could've been doing something wacky with the timing when it got to a certain temp. There is no way to heat it up to test this theory though. Once i found out that the new cdi fixed mine, i tried to heat the old one up w a heat gun while a meter was hooked to it. It didn't show anything wrong!
    justpinit, Oct 21, 2013
    #16
    broken biker likes this.

  17. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    I know that if the jetting is too lean, that the symptoms will get worse as the engine gets warmer
    Dirtdame, Oct 21, 2013
    #17

  18. K5PL5 Husqvarna
    Pro Class

    Location:
    Palmyra, PA
    Husqvarna Motorcycle:
    2012 WR300
    Other Motorcycles:
    03 Suzuki SV1000/73 Honda CB350
    Hes putting around tho. It doesnt look like its too hot outside while hes riding it either. Ive noticed my bike likes to sort of rev out longer off throttle when its hot but Ive never once had a bog like that-from 25 or so to 95 degrees outside.
    K5PL5, Oct 21, 2013
    #18

  19. justpinit Husqvarna
    AA Class

    Location:
    Maryland
    Husqvarna Motorcycle:
    2012 wr 300
    Other Motorcycles:
    93 kx 125 with a kdx 200 engine.
    Plus the way it comes and goes seems representative of an electrical or electronic issue!
    justpinit, Oct 22, 2013
    #19
    broken biker likes this.

  20. Johnny105 Husqvarna
    A Class

    Location:
    Clovis, New Mexico
    Husqvarna Motorcycle:
    13 WR250 (Sold), 14 WR300
    Other Motorcycles:
    12 KTM 50sx (daughters), 14 RMZ450
    I would take that gas vent hose off. sounds like its starving for fuel to me.
    Johnny105, Oct 22, 2013
    #20
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