Polaris RZR PRO R Service Manual page 200

ENGINE / COOLING SYSTEM
3. Install upper rail with end gap positioned on the
exhaust side of piston.
Upper Rail
Gap Position
Spring Expander
Gap Position
4. Install second ring with marking facing top of piston.
Rotate ring to position the end gap toward intake side
of piston as shown below.
3.86
5. Install top ring with mark facing top of piston. Rotate
Lower Rail
Gap Position
6. Be sure top and second rings rotate freely in their
Second Ring
Gap Position
ring to position the end gap toward exhaust side of
piston as shown below.
Top Ring
Gap Position
grooves and do not bind when compressed by hand.
9940259 R02 - 2022 RZR PRO R / PRO R 4 Service Manual
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