Yamaha YP250 Mobility Scooter User Manual


 
4-26
CYLINDER AND PISTON
ENG
NOTE:
NOTE:
4. Position:
SPiston rings
Offset the piston ring end gaps as shown.
a
Top ring end
b
Oil ring end (lower)
c
Oil ring end (upper)
d
2nd ring end
5. Lubricate:
SPiston outer surface
SPiston ring
SCylinder inner surface
Engine oil
6. Install:
SCylinder
D Install the cylinder with one hand while com-
pressing the piston rings with the other hand.
D Pass the timing chain and timing chain guide
(exhaust side) through the timing chain cav-
ity.