Honda SH125 Manual page 192

CYLINDER/PISTON
PISTONKYLI NDER INSTALLATION
PISTON INSTALLATION
Apply engine oil to the ring grooves.
Be careful not to
Carefully install the piston rings into the piston ring
damage the piston
grooves with the marks facing up.
Do not confuse the top and second rings.
and rings.
To install the oil ring, install the spacer first, then
install the side rails.
Stagger the piston ring end gaps 120 degrees apart
from each other.
Stagger the side rail end gaps as shown.
Placeashop towel
Apply engine oil to the piston pin and piston pin
at the opening of
hole.
Install the piston with the "IN" mark facing the intake
side.
the crankcase to
prevent the piston
Din
c l i ~ s from fallina
'
into the crankcase.
Install the piston pin and new pin clips.
Make sure the piston pin clips are seated
securely.
Do not align the piston pin clip end gap with the
piston cut-out.
CYLINDER INSTALLATION
Be careful not to
Clean the mating surfaces of the cylinder and crank-
surfaces.
Blow out the oil passage (stud bolt hole) in the cylin-
der with compressed air.
Install the dowel pins and a new gasket.
damage the mating
case thoroughly.
MARK "R"
I
MARK
"
R N
I'
20 mm or more
9-9