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Fox Float 3 and Qs3 Internal Floating Piston

Discussion in 'General Yamaha Discussion' started by cannondale27, May 18, 2017.

  1. cannondale27

    cannondale27 Moderator Staff Member Moderator Vendor Lifetime VIP Member VIP Member

    Messages:
    13,602
    Location:
    Manitowoc,WI
    These shocks have a plastic internal piston. It also doesn't have a wiper on it. This new design allows the piston to cock in the bore so the Nitrogen gas in shock which is at 200psi and much more under compression will bypass the piston and get Oil into Nitrogen and Vice versa. Also the piston when cocked in bore can cause shock to stick or worse break the piston itself. All shocks eventually need servicing for a variety of reasons including this but these shocks will require much sooner intervals. This was just a cost saving measure. When servicing these shocks I am recommending replacing this piston with the older style aluminum piston which is a much better design. The QS3 rc such as on LE models have a good aluminum piston so they are not a issue. Here is some pics of one that was actually broke and the aluminum piston I replaced it with.
    IMG_0869.JPG IMG_0870.JPG
     
  2.  
  3. STAIN

    STAIN TY 4 Stroke Master

    Messages:
    1,366
    Location:
    vermont
    Good find and better advice.........
     
    cannondale27 likes this.
  4. bradnytro93

    bradnytro93 Veteran

    Messages:
    30
    Location:
    labrador city
    Country:
    Canada
    Snowmobile:
    2007 Phazer MTX
    2006 Apex Mountain
    2004 SX Viper Mountain 700, SLP triple pipes and silencers & clutching
    2012 Grizzly 700, EPI Mudder clutch kit, snorkels, 12" itp ss rims, 28x12x12 gorilla silverbacks
    Gonna have a full set of the float qs3's for sale off a 2018 sidewinder mtx 153 le this fall, in Canada for anyone who's interested. Upgrading to Elka's


    Sent from my iPhone using Tapatalk
     
  5. STAIN

    STAIN TY 4 Stroke Master

    Messages:
    1,366
    Location:
    vermont
    Price?
     
  6. bradnytro93

    bradnytro93 Veteran

    Messages:
    30
    Location:
    labrador city
    Country:
    Canada
    Snowmobile:
    2007 Phazer MTX
    2006 Apex Mountain
    2004 SX Viper Mountain 700, SLP triple pipes and silencers & clutching
    2012 Grizzly 700, EPI Mudder clutch kit, snorkels, 12" itp ss rims, 28x12x12 gorilla silverbacks
    Not 100% sure yet, haven't looked them up yet to see what they're worth !


    Sent from my iPhone using Tapatalk
     
  7. thor452

    thor452 Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    2,334
    Location:
    Shawano,WI 54166
    Country:
    USA
    Snowmobile:
    2012 Apex XTX
    WTB...... Oh sorry for a minute I thought I was in the classified section.

    Steve Thanks for the update on this sad to say but seems to be the way of the world today how can we make sure our product just out lasts the warranty so we can sell more parts. Glad we have you to sell us the right quality part to make it last longer.
     
    cannondale27 and greatwhite89 like this.

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