KYMCO Active 50 Service Manual page 78

7
. CYLINDER/PISTON
Coat the cylinder bore, piston and piston
rings with clean engine oil.
Carefully lower the cylinder over the piston
by compressing the piston rings.
• Be careful not to damage or break the
piston rings.
• The piston ring end gaps should not be
parallel with or at 90° to the piston pin.
Install the cam chain guide roller and tighten
the roller bolt.
Temporarily install the cylinder bolts.
Install the cylinder head (page 6-10).
Tighten the cylinder bolt to the specified
torque.
TORQUE: 0.6～0.9kg-m
7-7
Guide Roller
Bolt
ACTIVE 50
Roller Bolt