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2007 R1 Clutch Won’t Disengage With Full Engine Rebuild

541 views 3 replies 4 participants last post by  Mujihana  
#1 ·
Hey everyone,

I’m new to the forum and decided to post here after hitting a wall with a clutch issue on my 2007 R1. I recently rebuilt the motor (bike was bought with a rod through the case) as a fun project. The engine runs great now, but the clutch won’t disengage when I pull in the lever.

Here’s what’s happening:

When I start the bike and put it into gear, it stalls unless I give it throttle and dump the clutch. The clutch lever has normal resistance and actuates the pressure plate — I’ve confirmed movement through the oil fill hole — but the clutch plates are still engaging.

What I’ve done so far:
  • Disassembled and reassembled the clutch over 50 times, going past the basket to double-check everything.
  • Verified the correct order of components:
    • Thrust washer
    • Oil pump gear, sleeve, and bearing
    • Clutch basket with washer and second thrust washer
    • Clutch boss assembly
    • 3 clutch springs and 30mm nut torqued to spec
  • Plate order:
    • Flat metal ring
    • Conical spring
    • Small clutch plate
    • Steel/friction stack (last friction plate offset half-phase to the right)
    • Pressure plate torqued to spec with housing splines aligned properly
  • Clutch stack height: 42.5mm (well within spec)
  • Friction plates soaked in oil for 24 hours before installation and generously oiled during assembly
  • Tried the “lever zip-tied overnight” trick to break the plates loose
  • Plates and steels are in great shape — no noticeable wear or warping
Despite all of this, the clutch won’t fully disengage. I’m officially out of ideas and looking for some fresh insight. I don’t mind tearing it apart again, and I can provide photos or video if that helps.

Any advice would be hugely appreciated!

Here are also 2 youtube videos I uploaded to give you guys more of idea of whats going on.
 
#3 ·
Jesus, that does sound like something is lose or seriously out of bounds.
For sure there´s something not right in there, never heard that before.

You might wanna let a professional take a look at this sooner rather than later i would suggest.

Good luck it´s not gonna be too costly!
 
#4 ·
I have no idea what that noise can be, but I can't imagine it's good to run your bike like that lol. Like A2K said, I'd check to see if your clutch basket is intact. Perhaps it's not seated correctly and slightly tilted to the side?