2004 Polaris Touring Service Manual, Page 97Get this manual
ENGINE 16Lubricate main bearing oil holes with Polaris Premium Cycle or Premium Gold engine oil and rotate crankshaft to distribute oil evenly17Install new C-clip in both pistons (inside) with gap facing up or downBe sure clip is fully seated in the piston groove18Lubricate and install new connecting rod small end bearing in rod19Install piston with the ring locating pins facing the intakeWarming the piston may help to ease installation of pin20Install remaining C-clip with gap downBe sure both clips are fully seated in the grooveGap Down Gap Up
C-Clip Installation Tool PN 287240120mm for Small Block (500-600 Domestic Engines)