Is it not "engageing", in other words the crank is not turning the sprocket?
Or is it not "disengageing", in other words sprocket still turns when clutch lever is pulled?
Is this a static/ bench test or is engine running?
Is this a brand new clutch or a used one that previously worked?
If it is new, did you soak the fibers?
Is the clutch arm in pic not excessivly worn where it meets push rod?
Push rod was out of shaft when you installed arm?
Arm had full spring tension (retracted) when rod installed?
Ball is in place?
You do realize that the pressure plate moves very little when clutch lever is pulled?
All else fails, start over, completely dissasemble the clutch, assemble it EXACTLY how the manual states. Line the dots up, offset plates, install pressure plate correctly. There has to be something simple you missed.
BTW, your backwards tires bugg me too8-|:-/