You need to remove the clutch fork shaft first. Use a 12mm 1/4" drive long socket to press into the plastic cage in the back of the gearbox - this is to press in 3 tabs to allow the fork pivot rod to be drawn out. Next screw in a very long threaded bolt through the socket and into the thread in the fork pivot bar. Use 2 lever bars together between the bolt head and socket to keep the tension on the tabs, but also to drive the bolt (and rod) out of the gearbox. The clutch fork wont come out of the casing until the gearbox is moved away from the engine a bit.
mobile mechanic, September 2008