Installing The Piston; Installing The Cylinder - KTM 50 SX Repair Manual

30/ASSEMBLING THE ENGINE

Installing the piston

17.24

Installing the cylinder

17.25
–
Cover the engine case opening with a cloth.
–
Oil the conrod bearing and position it in the connecting rod.
–
Position the piston.
Piston marking
300511-10
–
Slide piston pin
300466-11
–
Position the piston pin retainer in the 6 o'clock or 12 o'clock position.
–
Ensure that the piston pin retainer is correctly seated on both sides.
–
Remove the cloth.
400541-10
–
Position the new cylinder base gasket.
Info
If neither the piston, cylinder, crankshaft or engine case need to be
changed, the same gasket thickness can be used as before.
–
Oil the cylinder and piston.
–
Position the piston ring.
The anti-rotation lock engages in piston ring end
300465-10 –
Slide the cylinder over the piston.
–
Carefully push the cylinder down and ensure that the dowel pins are properly
engaged.
–
Mount nuts
Guideline
Nuts, cylinder base
–
Check the X-distance. (
300464-11
must face the exhaust side.

into the connecting rod by hand.

on both sides and tighten in a crisscross pattern.

p. 92)
.

M8 20 Nm
(14.8 lbf ft)
91