This is a new 54mm 100cc Big Bore Cylinder/Piston Top End Engine Rebuild Kit for the PolarisSportsman 90,Scrambler 90 & Predator 902-Stroke ATV's. The kit comes with all the items you need to upgrade from the standard 90cc to a 100cc as well as some additional maintenance items. Includes the following components: Cylinder Cylinder Head Piston Piston Rings Piston Pin Circlips Connecting Rod Bearing Spark Plug Head Gasket Base Gasket Intake Reed Valve Reed Valve Gasket Exhaust Gasket
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