Author Topic: CB750 New Clutch Dragging Badly  (Read 732 times)

0 Members and 1 Guest are viewing this topic.

Offline Mandic

  • Enthusiast
  • **
  • Posts: 234
CB750 New Clutch Dragging Badly
« on: February 29, 2012, 08:56:17 PM »
I finally got my bike back together and took it out for a test ride.  One of the bugs to iron out is my clutch.  It is dragging pretty badly.

This is on my 77 750F2.  I installed new fibers from Cycle-X with the same steels I had before, I just cleaned them and scuffed them up a bit with some light scotch bright.  The cable isn't smooth though it was new last year and I am not 100% about the routing(hard angle by the triple tree).  A new cable was delivered today so that will be changed tomorrow.  Oh and I got new heavy duty springs from Cycle-X.  Lastly I have a Motion Pro Clutch Lever assembly.

The way I adjusted it was to loosen the actuator nut, tighten down the flat head screw until I felt a drag, then tighten the nut.  I originally set it up like the manual says(contact then back off 1/4-1/2 turn).  Then I adjusted the cable.  At this point the cable has about 0 free play at the lever.  It was dragging so bad that the last ride I rode UP a small hill with the clutch lever squeezed.  Braking stops it but it tries like hell to overpower the brake. 

Also I am running new 20w-50 dino oil.  And I drilled the clutch hub as per one of the write ups I found around here aiming to improve my ability to shift into neutral and help oil pressure a bit. 

Any input?  Rockers Vs. Mods is this Friday-Sunday and I am fighting tooth and nail to get this thing ready.  I took the day off of work and plugged away all day on it.  Disappointing to have this issue but it is a bugged to be worked out is all.

« Last Edit: February 29, 2012, 09:00:10 PM by Mandic »
77 CB750F - Cafe/Daily Rider

Offline Mandic

  • Enthusiast
  • **
  • Posts: 234
Re: CB750 New Clutch Dragging
« Reply #1 on: February 29, 2012, 08:57:59 PM »
I never did check stack height on the clutch pack either.  This was the first motorcycle clutch I have rebuilt so I didn't know any better.  I have new Barnett steels in the box which would eliminate the middle double "damper" steel plate.  I'd assume that would reduce my stack height substantially though.
77 CB750F - Cafe/Daily Rider