EVR Slipper Clutch Install

Instead of a real blog, I’m just going to jot down my mental notes on the procedure for installing a slipper clutch on a 1098 for future reference:

Required Special Tools:

- clutch tool to hold hub and basket in place
- 19mm axle tool to remove center hub nut

Disassembly of Stock Clutch
1. Remove clutch cover and gasket
2. Remove 6 clutch cover spring bolts
3. Remove clutch cover and separate push rod and clutch lifter from cover by removing the push rod first then tapping out the clutch lifter.

From EVR Clutch Install 1.27.09

4. Remove enough plates to allow the clutch tool to fit onto the hub and basket and insert the clutch tool.

From EVR Clutch Install 1.27.09

5. Using the 19mm axle tool, remove the center nut.
6. Slide the hub with the remaining plates out of the basket. Note: if the hub appears to be stuck, clean the grooves on the eccentric shaft of all debris.
7. Remove the 8 13mm bolts holding the basket down and remove the basket.
8. Remove the last spacer and clean the housing and prep for installation.

From EVR Clutch Install 1.27.09

Slipper Clutch Installation
1. Insert supplied spacer with new o-ring.
2. Install new clutch basket with original bolts. Be sure to apply Red locktite to bolts prior to installing and torque all bolts to 35Nm in a star pattern. Note: use the clutch tool if you have trouble torquing the bolts down without the basket spinning.

From EVR Clutch Install 1.27.09

3. Slide the new hub onto the eccentric shaft and apply Red locktite to the nut. Toruqe the supplied nut to 230Nm.

From EVR Clutch Install 1.27.09

4. Next are the clutch plates which alternate between sintered and steel plates. Stack height should be 36.5mm.
5. Start with a steel plate, then a sintered plate until all plates are on the hub. Note: There are 3 concave steel plates which need to be installed in specific locations and in a specific direction. First concave plate is the second steel plate with the marking facing outward (visible when installed). The other two plates are the 2nd and 3rd to last plates with the marking facing inward (not visible when installed)

From EVR Clutch Install 1.27.09

5. Install the push rod and clutch lifter onto the new clutch cover and slide the clutch cover onto the hub.
6. Install 6 spring screws and caps being careful to use the star pattern and only hand tighten to 8Nm.

From EVR Clutch Install 1.27.09

7. Install clutch cover but DO NOT install the rubber gasket (ask me how I know).

From EVR Clutch Install 1.27.09

8. Start up the bike and go for a spin around the block I ensure everything is in order. If necessary, bleed the clutch master cylinder.

From EVR Clutch Install 1.27.09
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3 Responses to EVR Slipper Clutch Install

  1. Great little write-up mate.. Wish I spotted this before my install. That gasket really smokes if you put it back on.. :)

    Cheers, Brian

  2. Alain says:

    G’day Brian, just wanting to know if one ever tries to properly balance the complete Clutch kit. The steels have a notch on them, so technically if you do not spread them around uniformly, there WILL be an out of balance frequency somewhere in the RPM range of the motorcycle… just don’t know the magnitude and long term effect on the engine. Any way, what is your take on this issue and how do you configure your assemblies?
    Regards, Al

  3. Sparky says:


    Thanks for the write up…

    I’m stuck with the last spacer “Step 8″ Any advice how to pull it off.

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