One thing worth doing correctly before you delve too deep and condemn other items is to bleed the clutch, a bit of fun, the fun bit being removing the master cylinder cap sometimes screwed on by a gorilla and topping up the master cylinder whilst bleeding.
This won't permanently cure the fault, but if there is an improvement in gear changes it will point to the hydraulics, fitting a master cylinder is a wise move, simply due to it's age and will remove this from being a possible fault.
If there is a permanent result, this has been the problem, if gear change gradually deteriorates then the slave cylinder may be suspect which sadly means gearbox off to check the slave cylinder and the rest of the clutch assembly.
Difficult changes are usually caused by clutch drag, usually caused by air in the system ( there are other causes ) and sometimes double de-clutching temporarily cures this, much like pumping a brake pedal when there is air in the system to get a firmer pedal.
As DMGRS says, nothing wrong with the original ones, one of my 75's has about 160,000 miles and still on the original one.
__________________
Common sense isn't a gift, it's a punishment because you have to deal with everyone who doesn't have it. 
|