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

All 2st 1999 45mm Zokes, springs

Discussion in '2 Stroke' started by 2premo, Feb 7, 2015.

  1. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    left to right which is top to bottom
    i guess this is called mid valve

    17mm and .3
    20mm and .3
    21mm and .3
    23mm and .2

    valve then

    22mm and .1
    15mm and .1
    23mm and .1
    21mm and .1
    15mm and .2






    IMG_6767.JPG
  2. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    i went to the fische on these they seem to be the correct count
    some of the part numbers matched so it makes sense they are probably stock
    who knows where t go from here?
  3. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
    Typically BIZARRE early 45mm valving! Good start on your part, though. Now, Look carefully at that mid-valve piston and see if you can verify whether there is a tiny ~2mm hole drill sideways through one of the ports. If so, can you size it?
  4. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    it measures at 1.5mm
  5. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    of interest is when i took the 2nd leg apart as in removing the bottom valve, the nut that holds the shim pack came free or was free
  6. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
    Loose nuts! Hate that! A little blue loctite when it goes back together.

    Good job with your measurements. Standard shim thickness is .1, .15, .2, .25, etc. just as you have reported. The only exception that we'd commonly see is that KYB tends to use .11mm thick shims in a lot of their stuff. Marzocchi uses that standards .1, .15...

    That 1.5mm hole in the midvalve piston is a bleed hole. No problem there, it just affects how I like to shim the MV and Rebound so it's helpful to know if it's there. Overall, both your compression and rebound stacks seem very light, and that stack of .2 & .3 shims at the midvalve (typical for Marzocchi) is essentially rigid in use and mainly acts as a check plate. No doubt that's hurting you.

    So what are your plans? Do you want to buy a bunch of shims as we discussed and try some stack suggestions?
    oldbikedude likes this.
  7. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    i am hoping to soften up the compression and it's possible the one side was not acting correctly with a loose nut and gave me stiction issues due to cross loading
    if you have suggestions on where to start i am all ears

    60 years young, 220-230 with gear on (should be less, but another day on that) single track mainly, pretty fair amount of rocks to contend with, and the rough forks in the rocks is the complaint
  8. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
    Try this:

    Compression
    Drill base valve piston holes to 3.5mm or 9/64" (not all pistons can go this large, just make sure you don't take out the shim surface around the holes)

    22.1 (check ports - if not covered use a 23.1)
    22.1
    22.1
    22.1
    22.1
    20.1
    18.1
    16.1
    14.1
    12.1
    10.1
    12.1 (just keeps the 10.1 from eating into the aluminum)

    Reb
    22.1 (check ports - if not covered use a 23.1)
    22.1
    22.1
    22.1
    20.1
    18.1
    16.1
    14.15

    Midvalve
    22.1 (check ports - if not covered use a 23.1)
    22.1
    18.1
    18.1
    16.1
    14.1
    10.2 (as many as needed/thickness to set float)
    15.2
    spring

    Float 1-1.2mm
    Maxima 85/150 fork oil
    Air chamber 120mm
  9. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    where do i get these?
    the current float is 1.5 at the mid valve spring thing
  10. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
    Order shims from MX-Tech, Suspension Direct, Race-Tech, etc.
  11. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    what RPM would you drill that at?
  12. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
    I did mine at 500rpm on a very cheap home drill press. The material is not that hard to work with, it was a piece of cake, actually. My point is more that you don't want to try to go so large that you drill out the valving surface.
  13. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    the outside dimension of the sealing area is 22.86mm
    so i will use the 23mm
  14. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC

    when you say to keep the 10mm from eating int the aluminum you mean the shoulder that is 10.922?
  15. Picklito Husqvarna
    Pro Class

    Location:
    Washington
    Husqvarna Motorcycle:
    430, 430, 430, ,400, 175
    Other Motorcycles:
    KTM250xc, KTM500mx, KTM440exc
  16. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    what is Maxima 85/150 fork oil?
    air chamber is the level below the top?
  17. NCSteve Husqvarna
    Pro Class

    Location:
    Appalachia
    Husqvarna Motorcycle:
    12 WR300 13 WR165
    Other Motorcycles:
    02 XR250R 00 XR100R
    That's the Maxima 5wt oil many recommend, the good stuff. Interested in how you make out :thumbsup:
  18. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    98 WR360, 1987 WR430, 1988 XC430
    Other Motorcycles:
    Sherco 300, 2002 KTM 380EXC
    boy did i feel like a dope, the shims arrived and i opened them in anticipation of putting everything back together
    i realized immediately i bought enough for one leg :eek:
    well,, ordered the rest, will report soon
    oldbikedude likes this.