Piston - HYOSUNG Prima Service Manual

PISTON

● Install the piston rings on the piston.
∙1st - Keystone ring
∙2nd - Barrel face ring
� Expander ring
CAUTION
Position the ring so that the marking is on upside.
● It is extremely important that, when the piston is fed
into the cylinder, each ring in place should be so
positioned as to hug the locating pin as shown in the
illustration.
Position the ring so that the marking is on upside.
Locating pin
CORRECT
ENGINE 3-40
INCORRECT