Eton America Beamer PN2 Service Manual page 28

Do not align the piston pin clip end gap with the
piston cut-out.
Install a new cylinder gasket.
Apply a thin coat of engine oil to the piston rings
and cylinder wall.
Install the cylinder, compressing the piston rings.
Replace the cylinder head gasket.
Install the cylinder head.
Tighten the cylinder-mounting bolt.
Torque: 20-30 N-m
Beamer Rev-2.0.2 Page 28 of 55 11/21/2005