Marzocchi twin chamber bladder

Discussion in 'Common Items on Husqvarnas: Tires/tubes/grips/etc' started by Bart, Apr 2, 2014.

  1. Bart Husqvarna
    AA Class

    Location:
    The Netherlands
    Husqvarna Motorcycle:
    2008 TC450, 2006 WR250
    Other Motorcycles:
    2009 TM Racing EN300 and EN450
    So I did bleed the innerchamber of my Marzocchi 50 TC (or CC), but how much should the bladder be pre expanded? What exactly does pre expanding do to the handling?

    If it's pre expanded to much could I expect a harsh feel?
    Wouldn't it be better if it wasn't pre expanded at all (just free from air).
  2. robertaccio Husqvarna
    Pro Class

    Location:
    San Diego, Ca
    Husqvarna Motorcycle:
    2021 Husqvarna TE300i
    Other Motorcycles:
    99 HusqvarnaTE610, 94 Husaberg FC501
  3. Bart Husqvarna
    AA Class

    Location:
    The Netherlands
    Husqvarna Motorcycle:
    2008 TC450, 2006 WR250
    Other Motorcycles:
    2009 TM Racing EN300 and EN450
    I've read that article numerous times, it isn't very informative however at least it doesn't answer my basic question.
    I have enough experience with these forks (rebuilding that is), I know the bleeding procedure and I've done quite a few.

    What I'd like to know is how much the bladder should be pre expanded (fully extended), and what would happen if it expanded to much (but not so much it fouls on inner leg/tube).
  4. ray_ray Mini-Sponsor

    Location:
    The Philippines
    Husqvarna Motorcycle:
    08\013 WR250, 010 TC250, 012 TC250
    That article says to 'extend the cartridge rod and fill the chamber to the top' ... That's all I ever did when playing with the oil in the inner chamber..

    Wish I had more to give ya, but that's it ... That process always seemed to work for me ...

    --
    With my memory being tested here, and with all that said, extending that rod out of the chamber contracted the bladder I thought... The diameter of the bladder got smaller. Pushing the rod up wards, making it shorter, expanded the bladder. So I guess I do not under the terms correctly :(

    Good luck on your work ...
    R_Little likes this.
  5. robertaccio Husqvarna
    Pro Class

    Location:
    San Diego, Ca
    Husqvarna Motorcycle:
    2021 Husqvarna TE300i
    Other Motorcycles:
    99 HusqvarnaTE610, 94 Husaberg FC501
    ZipTy Racing is the US factory level Marzocchi expert, they have a direct line to Pedro (Pietro Palladino) the factory Zoke rep, you may want to reach out to them.
    ray_ray likes this.