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

250-500cc Pwk on Wr250...can't start it

Discussion in '2 Stroke' started by R_Little, Apr 29, 2010.

  1. R_Little Husqvarna
    Pro Class

    Location:
    NJ
    I just dropped a new PWK/JD in my '04 WR250 and I cannot get it to start.

    It started fine with the TMX, now all i get is a 2 second run then stall. I pull the plug and it is all wet with gas. Choke or no choke no difference.

    I've tried a 45/48 and 42 pilot with AS settings from 1/2 to 3 tuns and it is all the same. 185 and 180 mains...no difference. There is a JD blue needle in it now on the 4th clip.

    The float height was .630 I lowered it to .680 and it seems a little better but still no start, just a little fire and then stall.

    I've put 3 plugs in it with the same results.

    Does anyone have any ideas? Does anyone know the corret float height?

    Tomorrow I'll take it out and put the TMX back if I can't get it to run.

    Thanks!
  2. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    We spoke on the phone about this and am totally puzzled. I don't understand it. Your right on with jetting and float height. If it does not work out send it back, no big deal. i would like to see if the carb has a flaw in the casting or something up?
  3. hrc630 Husqvarna
    A Class

    Location:
    CANADA
    Mine did the same when i got it new.
    Im sure your trouble is the idle screw (black one).
    On my new PWK, i need to turn in a few turn to start the bike.
    Also, make sure your cable is tight.

    Francis
  4. R_Little Husqvarna
    Pro Class

    Location:
    NJ
    It aint the idle screw.

    I tuned it in and out.

    It soaked the plug with gas so bad it never ran for more than 2 sec...choke or no choke with 3 brand new plugs,

    I put the TMX back in and it started 2nd kick w/o choke and blubbered for a solid minute to burn off all the gas from 10 kicks with the PWK.
    Smoked like heck too.

    Runs fine now.

    Kelly, I'll send it back tomorrow,
  5. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    sounds good, there has to be something wrong with it. :excuseme:
  6. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    There must be something wrong with the needle and seat or float if it's doing that.
  7. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    One of the first things i asked him. Does not overflow when leaned over. the overflow hose is not kinked or anything right?
  8. R_Little Husqvarna
    Pro Class

    Location:
    NJ
    False alarm!

    It started.

    Indeed he was RIGHT. I stand corrected. The slide was closed.

    When I bottomed the idle screw it was already so flooded it would not start. Then I turned it back out again.

    When I took it out I noticed the pilot hole was behind the slide and it was drawing only gas with the slide full closed.

    I turned it in 4ish turns but it was not enough.

    I had to turn it about 10 turns to open the slide.

    Anyway, It runs now and seems right with the 42 pilot.

    I'm going to try to jet it this afternoon.

    It barely fits in the boots but it does go.

    Thanks all!
  9. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    That's good. hrc630 is right, they take a lot of idle screw to run right. Mine starts best when the idle is set to the high side. If not, you have a crack the throttle open just a bit.
  10. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Good stuff, i was so puzzled. :excuseme: Thanks hrc630 :thumbsup:
  11. R_Little Husqvarna
    Pro Class

    Location:
    NJ
    It is not hype.

    The low end low mid is WAAAY better. much more tractible with a 42 pilot.

    I can easily loft the front end over logs and such that before might have the motor fall on it's face. It used to chug good but not like this!
    I can run it to zero rpm in 3rd and just open the throttle and it runs perfect.

    Top end is similar but the upper mid is a little raspy before it cleans out. it was hot today so the 180 main may be a little big?
  12. letitsnow Husqvarna
    AA Class

    Location:
    mn
    Husqvarna Motorcycle:
    FC250
    Other Motorcycles:
    CBR600F4
    I have this carb on 2 different bikes and use a 170 main in one, 175 in the other.
  13. R_Little Husqvarna
    Pro Class

    Location:
    NJ
    i'll try a 175.

    Thanks