KTM 2012 250 SX-F, System Maintenance And Repair Manual

Page: 22 / 33

16
bolts, and the cylinder head bolts. Gently remove
everything and be careful to not drop anything down
into the bottom end. Once you get the cylinder head
off, you will see the cylinder and the piston. Take off
the cylinder very gently so that you don’t scratch the
cylinder walls. Next, you need to remove the wrist
pin clips using a flathead screwdriver (Picture 1.9).
Picture 1.9 ( Dirt Rider)
After removing the wrist pin clips, you can push the
wrist pin out. Now you can remove the piston, and
replace it. Work through the steps backwards to re-
assemble the bike. It is crucial that you secure the
wrist pin in properly. Make sure that the clips are
back in the grooves completely. Once the piston is
secured properly on the rod, put the cylinder back in
place.