94 gsx750f, 13K, clutch still slips after new plates!?!

[crashnaz]

Hi all, read lots of posts pertaining to clutches, pretty much typical symptoms sudden slippage @ powerband. Oil is fine, pulled the clutch pack replaced plates (EBC), checked springs all well over 1.5". Cable adjusted correctly. Rear brakes were rubbing (metal on metal) new pads & disc, caliper inner piston a bit stubborn returning home but freed up. Very slight drag on rear brake, easily rotates a couple turns when spun by hand. Double checked Castrol 4T Motorcycle oil 10w-40 comply's with wet clutch, was using valvoline vtwin 10w-40 last couple oil changes, local aps was out so I opted for castrol, about 2k miles on castrol 4t when clutch started slipping, old fibers plates had plenty of life left, metals were clean, no blueing or warpage.

I thought about pulling the clutch cover & adding another washer to each spring add a bit more pressure....

Any thoughts, would be much appreciated!!

- would rather be riding my KAT

[Wild-Bill]

Make sure your oil isn't overfilled. Check level in sight glass with the bike on the centerstand or being held vertical (off the sidestand).

[hardlydangerous]

Replace the springs !
you should replace the springs everytime to replace the plates. Afterall the springs are doing all the work.

Ive seen hundreds of springs that were toasted but still within specs length but I could compress them with my fingers.

EBC makes a great set of 10% stiffer springs. well worth the money.

I always tell everyone adjust the clutch push rod free play with the clutch cover removed. This way you can see and feel the drag on the pushrod. With the cover removed to can see if there is any tension on the push rod and it can be adjusted PERFECTLY with no messing around.
Im running EBC CSK45 springs in my 98 750. The kit comes with 6 springs

[crashnaz]

Very Strange Happenings....

clutch lever after adjustment has about an inch of play(flops around), Most likely needs a new cable stretched, but here's the wierd thing, every other ride, when I fire the bike up, clutch wants to slip, the first time I pulled the plastics & adjusted the clutch again, rode about 50 miles, next day fired her up no troubles rode about 50 more, the following day, clutch slipping again, WTF!! I really had some place to be, so I rode anyway. about a mile down the road clutch was fine no slip nice grab like it should, I would think if it's a weak spring issue it would slip all the time right??

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[Wild-Bill]

Replace the springs !
...Ive seen hundreds of springs that were toasted but still within specs length but I could compress them with my fingers...

'Nuff said.

[scottynoface]

You replaced the steels but left the old friction plates in?

If contamination were your issue you'd need to replace the friction plates as the contaminants have likely soaked into the cork already.

[hardlydangerous]

why anyone would replace clutch plates and not the springs is beyond me.... you do know your springs are what do 90% of the work right !
Hard to fix the problem is you do first know the condition of the components your using

REPLACE THE SPRINGS