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Clutch dragging

Started by Motofun, July 25, 2025, 12:36:41 PM

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Motofun

My '85 still has the stock clutch after all these years.  It has doubled diaphragm springs and a FJR master cylinder.  I finally got it back on the road and now the clutch master doesn't seem to completely disengage the clutch pack.  When on the center stand, in gear, with the clutch handle pulled in the rear wheel spins like the clutch is still engaged.  I can drag the wheel back down with out stalling the engine but it's a lot more than you would expect.  I checked the clutch hydraulics and all seems OK.  When pulling the handle I can hear the mechanism work in the engine (not running of course).  Any thoughts before I go doing something stupid?   Thanks
'75 Honda CB400F
'85 Yamaha RZ350
'85 Yamaha FJ1100
'89 Yamaha FJ1200
'09 Yamaha 125 Zuma
'09 Kawasaki KZ110 (grand kids)
'13 Suzuki GSXR 750 (track)
'14 Yamaha FZ-09
'23 Yamaha Tenere 7
SOLD: CBX,RZ500,Ninja 650,CB400F,V45 Sabre,CB700SC,R1,GSXR1000R

captaudi

How much free play do you have in the lever before it starts to load up? Should only be about 1/2"
93 FJ1200 FZR1000 wheels, Vance and Hines SS2R, Hank Scott jets R1 Monoblocks. Cartridge forks in the works.

1985 RZ350 couple mods

1977 R100S restoration in process

1972 Porsche 914 for days I feel like being left stranded.

red

There is a small bushing in the hand lever that pushes the clutch rod into the master cylinder.  Index #4 BUSH.
Clutch Lever Parts Fiche
IF this bushing is worn, you won't be able to fully disengage the clutch.  Clean and lube this bushing at least once or twice a year.  Otherwise, check that the hand lever pivot bolt and holes are not worn or loose-fitting.
That's just for starters.  Check back here with any results.  You can buy the BUSH separately; you do not need to buy the whole rebuild kit.
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

red

Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

racerrad8

Pivot and lever are readily availble from RPM, your #1 source for all of your FJ needs.

Usually the aluminum lever is worn out too and causing disengagement issues.

https://www.rpmracingca.com/proddetail.asp?prod=M%2FC%3AClutchLeverPivot

https://www.rpmracingca.com/proddetail.asp?prod=M%2FC%3AClutchLever

Randy - RPM
Randy - RPM

JohnnyTheCraneGuy

I assume this would work for the 1100's as well right since they're the same master cylinder?
Current
2003 XVS650
1990 FJ1200
1986 FJ1200 (Parts Bike)
1984 FJ1100 (1200 Swapped)
1984 FJ1100

racerrad8

The 1100 has a different clutch master cylinder and lever design.

The lever pushes directly on the end of the piston.

There is NOT a brass wear bushing and pushrod.

Randy - RPM
Randy - RPM

JohnnyTheCraneGuy

Thanks for clarifying Randy!
Current
2003 XVS650
1990 FJ1200
1986 FJ1200 (Parts Bike)
1984 FJ1100 (1200 Swapped)
1984 FJ1100