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

125-200cc spluttering under high rpm load wr 125 2013

Discussion in '2 Stroke' started by scott-tmk, Jul 17, 2019.

  1. scott-tmk Husqvarna
    AA Class

    Location:
    uk
    Husqvarna Motorcycle:
    Husqvarna wr125
    Bikes been running sweet for a long time now but all of a sudden its started spluttering and backfiring under high rmp load.

    so far changed..
    The spark plug.
    cleaned the carb.
    checked the wiring.

    just a bit miffed i'm thinking it could be a bad ground.

    thanks in advance gents.
    scott-tmk, Jul 17, 2019
    #1

  2. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    Might be the ingnitor unit going out. That's what mine did before it quit unning. After about 15 minutes, i manged to get it started again, but ended up riding it back to the truck at low RPMs or else it would die. I bought a new ignitor and the problem went away.
    Dirtdame, Jul 17, 2019
    #2
    shawbagga likes this.

  3. PawPaw Husqvarna
    AA Class

    Husqvarna Motorcycle:
    2013 TC 449
    Other Motorcycles:
    Honda Crf450R + old CB750
    Check your OHMs reading on the primary and secondary side of the ignition coil. The coil can break down under load or high rpms if going bad. Also check the spark plug boot and wire connection for corrosion.

    Paw Paw
    PawPaw, Jul 17, 2019
    #3

  4. scott-tmk Husqvarna
    AA Class

    Location:
    uk
    Husqvarna Motorcycle:
    Husqvarna wr125
    Spark plug boot looks okay checked the coil pack and got a reading from the cap to the pin one of the 4 pins on the plug and got a reading of 6.6 ohms im pretty sure its the coil breaking down under load any other ways i can fully test this ?
    scott-tmk, Jul 18, 2019
    #4

  5. robbyredneck Husqvarna
    AA Class

    Husqvarna Motorcycle:
    cr125
    Other Motorcycles:
    yz250f, crf250r kx100
    if it starts a little harder as well. check the reeds
    robbyredneck, Aug 4, 2019
    #5