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

250-500cc 2011 WR300 Rebuild

Discussion in '2 Stroke' started by icebergstu, Aug 17, 2014.

  1. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    After 150hrs and an intense bike boiler of a 6hr track cutting mission today, it's time to open the old Husky up and give it a new heart.

    This is what I found...

    Piston inlet side
    [IMG]

    Piston top
    [IMG]

    Exhaust side
    [IMG]

    Head
    [IMG]

    Barrel
    [IMG]
    [IMG]

    One bazaar & disturbing thing I have noticed is these couple of pits in the barrel wall...
    [IMG]

    Anyway. Would love to hear your expert opinions on all of the above on how everything looks and also what those pits are and if they could cause an issue. I doubt it but still...

    Also some coolant has leaked into the crank case when taking the barrel off. Any suggestions....

    Stu
    icebergstu, Aug 17, 2014
    #1

  2. juicypips Husqvarna
    Pro Class

    Location:
    gloucestershire
    Husqvarna Motorcycle:
    wr 360. 2002
    Other Motorcycles:
    Gas Gas TxT 300, Yamaha wr250f
    Pits will help trap oil in cylinder wall aid lube, just pourus casting, top end looks good you got a lectron on that?
    Change the slug if you think it needs but i would just re ring it and carry on going.
    juicypips, Aug 17, 2014
    #2
    icebergstu likes this.

  3. justintendo klotz super techniplate junkie

    Location:
    mercer, pa/northwest pa
    Husqvarna Motorcycle:
    84 250,86 400,87 430,88 250,95 360
    Other Motorcycles:
    99 kawasaki zrx 1100
    remove engine and tilt the rear of the engine up, flushing it out with brake cleaner..i would replace piston to be safe..
    justintendo, Aug 17, 2014
    #3
    icebergstu likes this.

  4. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    Cheers mate...good info.

    No Lectron. Just a good old Mikuni...
    icebergstu, Aug 17, 2014
    #4
    Dirtdame likes this.

  5. Glenn haynes Husqvarna
    AA Class

    Location:
    western pa
    Husqvarna Motorcycle:
    2012 wr300
    Other Motorcycles:
    13 yz250f 08yz85 11ktm 65 09 ktm65
    That top end is smoked..replace piston and ring. If it's just a little bit of coolant,I wouldn't worry.It will burn out on start up.
    Glenn haynes, Aug 18, 2014
    #5
    shawbagga likes this.

  6. Phil M. Husqvarna
    B Class

    Location:
    southern Missouri
    Husqvarna Motorcycle:
    11 WR300
    Other Motorcycles:
    77 RM125
    just be happy you didn't find this photo (7).JPG
    Phil M., Sep 1, 2014
    #6
    juicypips likes this.

  7. juicypips Husqvarna
    Pro Class

    Location:
    gloucestershire
    Husqvarna Motorcycle:
    wr 360. 2002
    Other Motorcycles:
    Gas Gas TxT 300, Yamaha wr250f
    Think you got the entire life outta that slug Phill M!
    juicypips, Sep 1, 2014
    #7

  8. shawbagga Husqvarna
    Pro Class

    Location:
    Eaton, Western Australia
    Husqvarna Motorcycle:
    None
    Other Motorcycles:
    2018 Gasgas XC250
    YUCK!:cry:
    shawbagga, Sep 7, 2014
    #8

  9. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    icebergstu, Sep 8, 2014
    #9

  10. shawbagga Husqvarna
    Pro Class

    Location:
    Eaton, Western Australia
    Husqvarna Motorcycle:
    None
    Other Motorcycles:
    2018 Gasgas XC250
    you win for the 'gouge factor' stu:eek:
    shawbagga, Sep 8, 2014
    #10
    icebergstu likes this.

  11. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    I think that was the piston clip on the other side that fell out...

    Yours looks melted though!

    Stu
    icebergstu, Sep 8, 2014
    #11

  12. rockdancer Husqvarna
    Pro Class

    Location:
    Sunshine Coast, Australia
    Husqvarna Motorcycle:
    2013 WR125, 2019 FE350
    thats how mine looked - circlip gouged into piston
    from other side
    Was that from not seating circlip properly ? did that happen just after a rebuild?
    rockdancer, Sep 8, 2014
    #12
    icebergstu likes this.

  13. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    To be honest it happened just after I had bought the bike brand new.
    Husky reluctantly came to the party after Lawyers got involved...

    Stu
    icebergstu, Sep 10, 2014
    #13

  14. shawbagga Husqvarna
    Pro Class

    Location:
    Eaton, Western Australia
    Husqvarna Motorcycle:
    None
    Other Motorcycles:
    2018 Gasgas XC250
    twas quite the epic saga was it not stu? the joys of dealing with PFG. least shes been going hard ever since eh mate, just a small(well rather large) speed bump on the road to husky happiness!
    shawbagga, Sep 10, 2014
    #14
    icebergstu likes this.

  15. icebergstu Husqvarna
    AA Class

    Location:
    South Australia
    Husqvarna Motorcycle:
    WR300/TE610e
    Other Motorcycles:
    WR360 CT110 XR100
    Certainly was an epic saga mate!!!
    icebergstu, Sep 11, 2014
    #15