Snowmobile Polaris 2006 - 2007 FS / FST. Manual - part 33

6.23

FS / FST Engine

6

Rev. 1 07/2006

Piston Assembly

UPPER COMPRESSION RING

MIDDLE COMPRESSION RING

OIL CONTROL RING

PISTON

C CLIP

PISTON PIN

BEARING SHELLS

CONNECTING ROD

STEP ONE: 7 Ft.Lbs. (10 Nm)
STEP TWO: 15 Ft.Lbs. (20 Nm)
STEP THREE: TURN 90°
APPLY ENGINE OIL TO THREADS

6.24

FS / FST Engine

Rev. 1 07/2006

Valve Assembly

LASH ADJUSTMENT SHIMS

VALVE KEEPERS

SPRING RETAINERS

VALVE SPRINGS

SPRING BUCKETS

VALVE GUIDES

CYLINDER HEAD

VALVES

CYLINDER HEAD GASKET
WRITING ON GASKET FACES UP

LARGE PORTS ON EXHAUST-SIDE OF ENGINE

SMALL PORTS ON INTAKE-SIDE OF ENGINE

6.25

FS / FST Engine

6

Rev. 1 07/2006

Crankshaft / Balance Shaft Assemblies

BEARING SHELLS

OIL PUMP DRIVE KEY

DRIVE GEAR KEY

BALANCE SHAFT

DRIVE GEAR

CRANKSAHFT MAIN BEARINGS

PTO CRANK SEAL

CRANKSHAFT

FLYWHEEL ASSEMBLY

BEARING

FLYWHEEL LOCATING PIN

51 Ft. Lbs (70 Nm)
LOCTITE

® 272

(INSTALLED HEIGHT CANNOT EXCEED
17.5mm)

APPLY LOCTITE

® 640 IN 4 LINES TO INNER

HUB.

6.26

FS / FST Engine

Rev. 1 07/2006

Front (MAG-END) Gear Cover Assembly

MAG Engine Mount / Alternator Bracket

FRONT GEAR COVER

ALIGNMENT DOWELS

SPEED SENSOR (CPS)

COVER SEAL

WASHER

ALTERNATOR PULLEY

WASHER

COVER

7 Ft. Lbs (10 Nm)

7 Ft. Lbs (10 Nm)

7 Ft. Lbs (10 Nm)

60 Ft. Lbs (80 Nm)

ALTERNATOR BELT

MAG ENGINE MOUNT

ALTERANTOR

UPPER ALTERNATOR BRACKET

30 Ft. Lbs (40 Nm)

30 Ft. Lbs (40 Nm)

15 Ft. Lbs (20 Nm)

15 Ft. Lbs (20 Nm)