3
9940259 R02 - 2022 RZR PRO R / PRO R 4 Service Manual
© Copyright Polaris Industries Inc.
3.55
REED VALVE REPLACEMENT
1. Remove the four fasteners retaining each of the reed
valves to the crankcase.
2. Installation is performed by reversing removal.
Torque fasteners to specification in sequence.
IMPORTANT
The reed valves must be installed in the correct
direction. They have features on them that correspond
with the crankcase fasteners. Make sure they are in the
proper orientation as shown..
TORQUE
Reed Valve Fasteners:
80 in-lbs (9 N·m)
PISTON, CONNECTING ROD, AND
BEARING REMOVAL
1. Rotate the crankshaft to a position where the
connecting rod bolts are the most accessible.
2. Mark the connecting rod and cap with the cylinder
position. Also mark their orientation. This will ensure
the caps and connecting rods are re-assembled
properly.
3. Remove any ridge at the top of the cylinder bore to
avoid damage to the piston ring lands.
4. Remove the connecting rod bolts.
5. Remove the connecting rod cap.
6. Remove the piston and connecting rod assembly.
CAUTION
Use care not to damage the cooling jet during piston/
rod removal.
ENGINE / COOLING SYSTEM
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