Polaris 2003 Pro X Service Manual page 72

ENGINE
Assembly, Cont.
10. Lubricate and install new connecting rod small
end bearing in rod.
11. Install remaining C-clip with gap up or down. Be
sure both clips are fully seated in the groove.
C- -Clip Installation Tool
PN 2872622 - - 22mm for Large Block
(700- -800 Domestic Engines)
12. Install pistons and rings. Make sure C-clips are
firmly seated in grooves. NOTE: Keystone ring
bevel must be up. Marking near ring end gap faces
upward.
13. Lubricate pistons, rings, upper rod bearing, and
cylinders with two stroke oil and install cylinders.
Align ring end gaps with locating pins and compress
rings. Install cylinder carefully with a gentle front to
rear rocking motion. Loosely install the cylinder
nuts.
14. Install new cylinder head O-ring and install cylinder
head. Make sure O-ring is properly seated in
groove.
15. Torque cylinder base bolts in proper sequence.
Refer to specifications in the beginning of this
chapter.
2.40
Up
Straight Edge
Piston Ring Cutaway
Keystone Piston Ring
5
6
3
1 2
7
4
8