Snowmobile Yamaha Phazer PZ50W, PZ50GTW, PZ50FXW, PZ50MW, PZ50VTW, PZ50MPW. Manual - part 9

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CHECKING THE AIR FILTER ELEMENT

1. Remove:

• Air filter case cover

Refer to “COWLINGS” in CHAPTER 3.

2. Lift up the air filter element frame and remove

the air filter element.

3. Clean:

• Air filter element

NOTE:

Remove the snow.

4. Inspect:

• Air filter element

Damage/clogs 

→ Replace.

5. Install:

• Air filter element
• Air filter case cover

CHECKING THE AIR FILTER ELEMENT

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EXHAUST SYSTEM INSPECTION

EXHAUST SYSTEM INSPECTION

1. Remove:

• Fuel tank

Refer to “SEAT AND FUEL TANK” in CHAP-
TER 5. (PZ50/PZ50GT/PZ50FX/PZ50M)
Refer to “RIDER SEAT AND FUEL TANK” in
CHAPTER 5. (PZ50VT/PZ50MP)

2. Inspect:

• Exhaust pipe joints 1 
• Exhaust pipe/muffler assembly 2 
• Exhaust pipe bands 3 
• Muffler end cover 4 (PZ50/PZ50GT/PZ50FX/

PZ50M)

• Muffler damper holder 5 
• Muffler damper 6 

Cracks/damage 

→ Replace.

• Gasket 7 
• Gaskets 8 

Exhaust gas leaks 

→ Replace.

3. Inspect:

• Tightening torque

4. Install:

• Fuel tank

Refer to “SEAT AND FUEL TANK” in CHAP-
TER 5. (PZ50/PZ50GT/PZ50FX/PZ50M)
Refer to “RIDER SEAT AND FUEL TANK” in
CHAPTER 5. (PZ50VT/PZ50MP)

T

 

R

.

.

Exhaust pipe joint bolt 9:

25 Nm (2.5 m · kg, 18 ft · lb)

Exhaust pipe/muffler bolt 0:

33 Nm (3.3 m · kg, 24 ft · lb)

Muffler damper holder bolt A:

10 Nm (1.0 m · kg, 7.2 ft · lb)

Exhaust pipe band bolt B:

18 Nm (1.8 m · kg, 13 ft · lb)

Muffler end cover bolt C:

10 Nm (1.0 m · kg, 7.2 ft · lb)
LOCTITE

®

9

7

3

3

5

5

6

2

6

8

1

4

C

1

0

A

A

B

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SHEAVE OFFSET ADJUSTMENT

POWER TRAIN

SHEAVE OFFSET ADJUSTMENT

1. Remove:

• Left side panel
• Left side cover

Refer to “COWLINGS” in CHAPTER 3.

2. Remove:

• Drive V-belt

3. Measure:

• Sheave offset 

a 

Use a straightedge that is approximately
470 mm (18.5 in) long, 20 mm (0.79 in) wide,
and 4 mm (0.16 in) thick.
Out of specification 

→ Adjust.

NOTE:

Push the secondary sheave inward towards the
frame, and then measure the sheave offset.

Sheave offset:

14.5 ~ 17.5 mm (0.57 ~ 0.69 in)

4. Adjust:

• Sheave offset

Adjustment steps:

• Apply the brake to lock the secondary sheave.
• Remove the secondary sheave bolt 1, washer

2, shim(s) (left), and secondary sheave 3.

• Install the appropriate shim(s) (right) 4 from the

following table so that the sheave offset is within
specification.

Shim size

Part number

Thickness

90201-252F1

0.5 mm (0.02 in)

90201-25527

1.0 mm (0.04 in)

3

1

2

4

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SHEAVE OFFSET ADJUSTMENT

• Install the secondary sheave, secondary

sheave bolt and washer.

• Recheck the sheave offset. If out of specifica-

tion, repeat the above steps.

NOTE:

When adjusting the sheave offset, the secondary
sheave free play (clearance) should be adjusted.

T

 

R

.

.

Secondary sheave bolt:

60 Nm (6.0 m · kg, 43 ft · lb)

5. Measure:

• Secondary sheave free play (clearance) 

a 

Use a feeler gauge.
Out of specification 

→ Adjust.

Secondary sheave free play (clear-
ance):

1.0 ~ 2.0 mm (0.04 ~ 0.08 in)

a

6. Adjust:

• Secondary sheave free play (clearance)

Adjustment steps:

• Apply the brake to lock the secondary sheave.
• Remove the secondary sheave bolt 1 and

washer 2.

• Install the appropriate shim(s) (left) 3 from the

following table so that the secondary sheave
free play is within specification.

Shim size

Part number

Thickness

90201-252F1

0.5 mm (0.02 in)

90201-25527

1.0 mm (0.04 in)

3

2

1