KTM 250 SX - Manual (Page 31)

4-3C
– Undo the screws 1 and remove the right control cover.
– Remove the securing clip of the ball socket 2 and unhook the ball
socket 3 from the adjusting lever.
– Remove gasket of the control cover.
– Remove the 4 collar nuts 4 on cylinder base and remove cylinder.
– Cover the crankcase.
– Place piston on wooden jig and remove both piston pin locking pins.
– Expel piston pin from piston without exerting undue force. Use a
suitable mandrel if necessary.
– Remove piston and piston pin needle-bearing from conrod eye.
– Remove the cylinder base gaskets.
! CAUTION !
T HE PISTON PIN MUST NEVER BE FORCED OUT WITH A PUNCH . T HIS WOULD DAMAGE
THE CONROD BEARING .
Dismounting of clutch cover
– Remove collar screws and clutch cover including gasket.
NOTE: The water pump cover 6 , the outer cover 5 and the cover lid 7
do not need to be removed. The water pump and the centrifugal timer
remain in the clutch cover.
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