Suzuki GN125F, Service Manual

Page: 51 / 148

E N G I N E
3-20
Hold each piston ring with their properly spaced and insert
them into the cylinder.
Check to insure that the piston rings are properly inserted
into the cylinder skirt.
Before assembling the cylinder head, apply oil to conrod big
end, small end and piston sliding part.
Install the dowel pins
, then install the gasket.
When installing the piston the indent on the piston head
must be located to the exhaust side
,
.
Place a clean rag over the cylinder base to prevent piston pin
circlip from dropping into crankcase, and then fit the piston
pin circlip with long-nose pliers.
Replace with a new piston pin circlip to prevent circlip
slipping from position.
End gap of the circlip should not be aligned with the
cutaway in the piston pin bore
.
To prevent oil leakage, do not use the used gasket
again, always use new one.
NOTE:
When mounting the cylinder
after attaching camshaft
drive chain , keep the camshaft drive chain taut, The
camsahft drive chain must not be caught between cam
drive chain sprocket and crankcase when crankshaft is
rotated.
There is a holder for the bottom end of the cam chain
guide cast in the crankcase. Be sure that the guide is
inserted properly or binding of the cam chain and guide
may result.
,
Install the cylinder head. (Refer to page 3-15)
2