Cylinder Assembly - Polaris 340 LX 2007 Service Manual

Engine Systems

Cylinder Assembly

COOLANT OUTLET PIPE
THERMO SWITCH
INTAKE BOOT
SCREW CLAMP
Disassembly / Assembly Process
1. Using an siphon pump, remove enough engine
coolant from the fill tube to lower the coolant level
below the cylinder block.
2. Remove the cylinder head. Discard the head gasket.
3. Remove the exhaust system, carburetors, and water
pump assembly. Discard all o rings and gaskets.
4. Remove the nuts securing the cylinder block to the
crankcase. Remove the block, then discard the base
gasket.
5. Carefully inspect the cylinder block and crankcase for
warping.
6. When installing a new cylinder base gasket, install
with sealing surface up.
7. Apply a liberal amount of two-stoke engine oil to each
piston assembly and each cylinder bore. Carefully
install each piston while making sure each piston ring
is centered at each piston ring locating pin.
5.32
CYLINDER HEAD GASKET
O RING
OIL INJECTOR FITTING
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
8. When installing a new head gasket, install with "UP"
located on the intake-side of engine and readable
when looking down at the engine.
9. Use new exhaust gaskets and intake o rings when
installing components.
10. When refilling cooling system, follow procedures
outlined in Maintenance chapter.
Fastener
Cylinder Base
Nuts
Cylinder Head
Thermoswitch
©2011 Polaris Sales Inc.
CYLINDER HEAD
EXHAUST GASKET
CYLINDER BLOCK
CYLINDER BASE GASKET
Torque Note
27 - 32 ft.lbs.(37 - 43
Nm)
18 - 20 ft.lbs. (25 -27
Nm)
Apply pipe sealant
to threads.