Snowmobile Yamaha Phazer PZ50W, PZ50GTW, PZ50FXW, PZ50MW, PZ50VTW, PZ50MPW. Manual - part 55

5-57

ENG

BALANCER

5. Tighten:

• Primary sheave drive shaft cover bolt

NOTE:

Apply LOCTITE

®

 to the bolts (black) indicated by

the  “

” marks on the primary sheave drive shaft

cover.

T

 

R

.

.

Primary sheave drive shaft cover 
bolt:

12 Nm (1.2 m · kg, 8.7 ft · lb)
LOCTITE

®

5-58

ENG

CRANKCASE

CRANKCASE

CRANKCASE

Order

Job name/Part name

Q’ty

Remarks

Crankcase removal

Remove the parts in the order listed below.

Engine

Refer to “ENGINE ASSEMBLY”.

Cylinder head

Refer to “CYLINDER HEAD”.

A.C. magneto rotor/starter clutch gear

Refer to “A.C. MAGNETO ROTOR AND 
STARTER CLUTCH”.

Oil pump

Refer to “OIL PAN AND OIL PUMP”.

Balancer shaft

Refer to “BALANCER”.

Starter motor

Refer to “STARTER MOTOR” in CHAPTER 
8.

1

Timing chain guide (intake side)

1

2

Timing chain

1

3

Lower crankcase

1

4

Dowel pin

2

For installation, reverse the removal proce-
dure.

1

2

3

4

4

12 Nm (1.2 m 

•

 kg, 8.7 ft 

•

 lb)

É:

È:   

Specified angle 65 ~ 70˚

Final

15 Nm (1.5 m 

•

 kg, 11 ft 

•

 lb)

15 Nm (1.5 m 

•

 kg, 11 ft 

•

 lb)

1st

2nd

È

È

É

È

È

È

E

E

E

E

È

E

LT

LT

(3)

(2)

(2)

(5)

(6)

5-59

ENG

CRANKCASE

CONNECTING RODS AND PISTONS

Order

Job name/Part name

Q’ty

Remarks

Connecting rods and pistons removal

Remove the parts in the order listed below.

1

Connecting rod cap

2

2

Big end bearing

4

3

Piston pin clip

4

4

Piston pin

2

5

Piston

2

6

Connecting rod

2

7

Top ring

2

8

2nd ring

2

9

Oil ring

2

For installation, reverse the removal proce-
dure.

1

2

2

6

4

3

5

8

7

9

3

È:   

Specified angle 120 ~ 130˚

20 Nm (2.0 m 

•

 kg, 14 ft 

•

 lb)

1st

2nd

New

New

E

E

E

E

E

M

M

È

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ENG

CRANKCASE

CRANKSHAFT

Order

Job name/Part name

Q’ty

Remarks

Crankshaft removal

Remove the parts in the order listed below.

1

Crankshaft

1

2

Crankshaft journal bearing

6

3

Upper crankcase

1

For installation, reverse the removal proce-
dure.

1

2

2

2

3

2

E

E

E

E