Piston Installation; Cylinder Installation - KYMCO NEXXON 50 Service Manual

7
. CYLINDER/PISTON
PISTON RING INSTALLATION
Install the piston rings onto the piston.
Apply engine oil to each piston ring.
＊
• Be careful not to damage the piston and
piston rings during assembly.
• All rings should be installed with the
markings facing up.
• After installing the rings, they should
rotate freely without sticking.
• Stagger the ring end gaps as the figure
shown.
Install the piston, piston pin and a new piston
pin clip.
＊
• Position the piston "IN" mark on the
intake valve side.
• Place a clean shop towel in the
crankcase to keep the piston pin clip
from falling into the crankcase.

CYLINDER INSTALLATION

Install the dowel pins and a new cylinder
gasket on the crankcase.
Top
Second
Piston Pin Clip
"IN" Mark
Piston
NEXXON 50
Top
Second
Side Rail
Oil Ring
Side Rail
Piston Pin
Dowel Pins
Gasket
7-6