Given where it lives, the clutch arm pivot gets exposed to lots of nasty road grime and stuff.  Because of this it is not uncommon for the pivot pin to get seized in the needle bearings inside of the clutch arm, making the pivot pin very difficult to remove.

Here's what I've found works for getting the pivot pin out when it is seized in the clutch arm bearings.

1) Remove the circlip (13) from the right end of the pivot pin.  Be careful doing this because, if you're not careful, it will go flying off to some unknown corner of your garage where you will never find it.

2) Crank down HARD with some Vise-Grips on the left end of the pivot pin.  Hold the clutch arm in place and use the Vice-Grips to get the pivot pin to rotate in the clutch arm.  This will un-seize the pivot pin in the needle bearings.

3) (Optional) Apply penetrating oil and let it sit for a while.

4) Use a nail set and a hammer on the right end of the pivot pin to tap the pivot pin out to the left side of the bike.  It will still most likely be a bit stubborn so be persistent.

Typical Nail Set

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