Content .. 90 91 92 93 ..

Snowmobile Yamaha Phazer PZ50 (2007-2008 year). Manual - part 92

9-21

SPEC

TIGHTENING TORQUE

ENGINE

Parts to be tightened

Tightening torque

Remarks

m · kg

ft · lb

Spark plug

1.3

9.4

Cylinder head bolt (M10

× 1.25)

See NOTE.*1

Cylinder head bolt

1.2

8.7

Camshaft cap and cylinder head

0.9

6.5

Apply the engine oil.

Cylinder head cover

1.2

8.7

Cylinder identification sensor

0.8

5.8

Ignition coil

1.0

7.2

Camshaft and camshaft sprocket

2.4

Oil check bolt

1.0

7.2

Timing chain tensioner

1.2

8.7

Apply LOCTITE

Timing chain guide (intake)

1.2

8.7

Apply LOCTITE

Thermostat housing cover

1.0

7.2

Coolant temperature sensor

2.3

Hose band

0.2

1.4

Water pump

1.2

8.7

Coolant reservoir tank

1.0

7.2

Radiator

1.0 7.2

Radiator fan motor

0.8

5.8

Water jacket joint

1.0

7.2

Knock sensor

2.7

Oil cooler

1.0

7.2

Apply LOCTITE

Rear engine mounting bolt spacer

0.7

5.1

Engine mounting nut

4.0

Engine mounting bracket

2.3

Oil pan

1.0

7.2

Oil pan engine oil drain bolt

3.0

Oil filter cartridge

1.7

Oil filter bolt

3.0

Oil pressure switch

1.5

Oil pump

1.2

8.7

OIl pump drive chain guide

1.0

7.2

Apply LOCTITE

Oil pump housing cover

0.5

3.6

Oil tank engine oil drain bolt

1.6

Oil tank and frame

1.0

7.2

Exhaust pipe joint

2.5

Exhaust pipe joint upper cover

0.6

4.3

Exhaust pipe joint lower cover

0.8

5.8

Exhaust pipe band

1.8

Exhaust pipe/muffler

3.3

Muffler dumper holder

1.0

7.2

Muffler end cover

1.0

7.2

Apply LOCTITE

(PZ50/PZ50GT/PZ50FX/PZ50M)

Crankcase (M9

× 1.25)

See NOTE.*2

Apply the engine oil.

Crankcase (M6

× 1.0)

1.2

8.7

Apply the engine oil.

Primary sheave drive shaft cover

1.2

8.7

Primary sheave drive shaft assembly bolt

1.2

8.7

Balancer shaft drive gear

7.5

Balancer shaft driven gear

5.0

9-22

SPEC

TIGHTENING TORQUE

NOTE:

*1: Tighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence, loosen

and retighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence,
and then tighten the cylinder head bolts further to reach the specified angle 175 ~ 185° in the proper tight-
ening sequence.

*2: Tighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, loosen and

retighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, and then
tighten the crankcase bolts further to reach the specified angle 65 ~ 70° in the proper tightening
sequence.

*3: Tighten the connecting rod nuts to 20 Nm (2.0 m · kg, 14 ft · lb), and then tighten the connecting rod nuts

further to reach the specified angle 120 ~ 130°.

Bearing retainer

1.0

7.2

Apply LOCTITE

Right balancer weight

5.0

Connecting rod and cap

See NOTE.*3

A.C. magneto rotor

130

13.0

Apply the engine oil.

A.C. magneto rotor cover bolt (M6

× 1.0) × 7

1.2

8.7

A.C. magneto rotor cover bolt (M6

× 1.0) × 6

1.2

8.7

Apply LOCTITE

Starter clutch

1.2

8.7

Apply LOCTITE

Stator coil

1.0

7.2

Apply LOCTITE

Pickup coil

0.7

5.1

Apply LOCTITE

A.C. magneto lead holder

1.0

7.2

Apply LOCTITE

Starter motor

1.2

8.7

Fuel pump

0.7

5.1

Fuel tank

1.0

7.2

Starter motor lead

0.7

5.1

Throttle cable locknut

0.6

4.3

Rectifier/regulator

0.7

5.1

Frame ground lead (rectifier/regulator)

0.7

5.1

Engine ground lead (water jacket joint)

1.0

7.2

Frame rear cross member (front)

2.5

Frame rear cross member (rear)

3.0

Parts to be tightened

Tightening torque

Remarks

m · kg

ft · lb

9-23

SPEC

TIGHTENING TORQUE

POWER TRAIN

Parts to be tightened

Tightening torque

Remarks

m · kg

ft · lb

Primary sheave

See NOTE.

Apply engine oil.

Spider and sliding sheave

200

20.0

145

Left-hand thread.
Apply LOCTITE

Primary sheave cap and sliding sheave

1.4

Roller and weight (primary sheave)

0.6

4.3

Secondary sheave

6.0

Bushing stopper bolt (secondary sheave)

0.7

5.1

Drive chain cover and frame

2.4

Drive chain oil drain bolt

1.6

Drive chain adjusting locknut

2.5

Driven sprocket

4.8

Apply LOCTITE

Bearing holder (secondary shaft)

2.4

Set bolt (secondary shaft)

0.9

6.5

Apply LOCTITE