Suzuki AN650 2002 Service Manual page 120

PISTON RING
• Install the piston rings in the order of the oil ring, second ring
and top ring.
• Install the spacer 1 of the oil ring first and then the side rail
2.
* When installing the spacer, be careful so that the
both edges are not overlapped.
* When installing the piston ring, be careful not to
damage the piston.
* Do not expand the piston ring excessively since it is
apt to be broken down.
• Be careful not to mistake the second ring 3 and the top ring
4, the sectional form is different.
• Face the side with the stamped mark upward when assem-
bling.
• After installing all the piston rings, check that each ring rotates
smoothly.
• To prevent poor compression or oil leaking up to the cylinder
inside, position each ring end gap as shown in the right figure.
A Second ring / side rail (lower side)
B Side rail (upper side)
C Top ring / spacer
ENGINE
1st ring
Mark
2nd ring
Mark
EX
IN
3-69