2007-2011 Polaris IQ Snowmobiles Service Manual, Page 263Get this manual
Engine and Cooling Systems DisassemblyAssembly Process 1Remove the engine from the engine compartment2Follow the process for removing the cylinder head, cylinders, pistons, flywheelrecoil housing, and the wateroil pump3Remove the intake boots, reed stuffers, and reed assemblies from the intake tracksDiscard any seals or gaskets4Remove the fasteners from the bottom of the crankcaseCarefully pry apart the crankcase halvesDiscard the PTO and MAG crankshaft seals5Remove the crankshaftInspect as required6Thoroughly clean the two crankcase mating surfaces with carburetor cleaner and gasket removerFlush out the crankcase galleries7Reinstall the crankshaft back into the lower crankcase using two new crankcase seals8Apply thin bead of Three Bond 1217H to the lower crankcase mating surfaceInstall the upper crankcase9Loosely install the crankcase fasteners, then torque to the specifications at the beginning of the chapterUse the correct torque sequence when tightening the screws10Liberally coat the crankshaft bearings and components with Polaris two-stroke engine oil