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FWIW, I had a similar thing with my /6. The clutch would be slippy in the morning for the first mile or so. Then good for the rest of short or long rides. The slippiness did not come back if the bike rested for hours, not even for or8. But overnight - slippy.. Not sure what caused it, I changed clutch plate, cleaned and lubed and also changed the felt tip on the actuation arm.
And the tranny should go out easy on the left side by loosening the "back fork". you might want to remove the battery- and box as well.

Good luck!

I had this broblem and completely solved it by filing slight chamfers on the clutch disk splines front and back edges .
This allowed the clutch plate to slip easily along the spline and not dig in on sharp edges .
I did not have the experience to shim the input shaft to the tight tollerences required .
The experts on this forum will not like this dodge so dont tell them .

swing arm is off, right side exhaust, battery box, EZ-clutch, air box and gas tank.

Gotta go to dinner - so I am done for the night. The next step I think is to remove the bolts that hold the transmission on.

I need to relax the pivot arm on the throw-out and I can't see how to do it. The book says circle clip, but I can't see it and don't want to get my hands greasy again tonight. Is there a clip down there? The lower end of the pivot arm looks like a slightly oversized grease fitting.

Once the transmission is out, it is quick and fast to check the end play. Why wouldn't someone do it? It is a check that doesn't require the cover to come off.

I find the filing a chamfer on the splines to be quite interesting. Nothing wrong with that idea.

Duane Ausherman wrote:I find the filing a chamfer on the splines to be quite interesting. Nothing wrong with that idea.

Indeed Duane. Good post Jim, who did you think would oust you for doing something such as posting a good reccomendation???

dwire wrote:

Duane Ausherman wrote:I find the filing a chamfer on the splines to be quite interesting. Nothing wrong with that idea.

Indeed Duane. Good post Jim, who did you think would oust you for doing something such as posting a good reccomendation???

Yeah, it makes very good sense, since the worn shoft splines become camfered (almost a fillet, really), it would keep the sharp edge on the insides of the clutch plate splines from digging into that camfer.

I have not found an obvious cause for my jerky clutch. Nor have I found a reason for it to slip. There was a fair amount of dust in there. There was no detectable end play in the transmission shaft.

Too much grease on the splines ended up on the disk.

What does the other side of the pressure plate look like - the bit where the 'teeth' of the diaphragm spring engages? Have you measured the height of the diaphragm spring? On mine the teeth had dug holes in the pressure plate and provided a very plausible cause for my jerky clutch action - since fixed by replacing both parts.

Your second picture shows grease spinning out onto the pressure plate and disk. Is that gear oil from the tranny or is it just spline lube?