2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 143Get this manual
![2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 143](143.jpg)
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ENGINE ENGINE ASSEMBLY
Top ring gap
"0" mark on top Barrel face Bottom Rail
Expander
Undercut facing down (piston skirt) Notched face