Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 28

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POWR

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POWER TRAIN

PRIMARY SHEAVE AND DRIVE V-BELT

s

Order

Job name/Part name

Q’ty

Remarks

Primary sheave and drive V-belt 
removal

Remove the parts in the order listed below.

Left side cover/Drive guard

Refer to “COVERS” in CHAPTER 3.

1

V-belt

1

2

Primary sheave assembly

1

For installation, reverse the removal proce-
dure.

1

2

È

E

È:   

60 Nm (6.0 m 

•

 kg, 43 ft 

•

 lb)

120 Nm (12.0 m 

•

 kg, 85 ft 

•

 lb)

1st

2nd

PRIMARY SHEAVE AND DRIVE V-BELT

4-2

POWR

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PRIMARY SHEAVE AND DRIVE V-BELT

Order

Job name/Part name

Q’ty

Remarks

Primary sheave disassembly

Remove the parts in the order listed below.

1 

Primary sheave cap

1

2 

Primary sheave spring

1

3 Collar

3

4 Roller

3

5 Washer

6

6 Collar

3

7 Weight

3

8 Washer

6

9 Fixed 

sheave

1

0 Stopper

2

A Sliding 

sheave

1

B Bushing

1

C Spider

1

Left-handed 

thread.

D Slider

3

E Slider

3

F O-ring

3

For assembly, reverse the disassembly pro-
cedure.

4

4-3

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PRIMARY SHEAVE AND DRIVE V-BELT

REMOVAL

1. Remove:

• Primary sheave assembly 1 

NOTE:

Use the primary sheave holder 2 and primary
sheave puller 3.

Sheave holder:

90890-01701

Primary clutch holder:

YS-01880-A

Primary sheave puller (18 mm):

90890-01898,
YS-01881-A, YS-01881-1

DISASSEMBLY

1. Remove:

• Fixed sheave 1 
• Stopper 2 
• Sliding sheave 3 
• Bushing 4 
• Spider 5 

Removal steps:

• Immerse the primary sheave assembly in 80 ~

100  °C (176 ~ 212 °F) water for several min-
utes.

• Attach the lower piece of the clutch spider sepa-

rator 6 onto a rigid table using suitable mount-
ing bolts.

• Then, install the clutch separator adapter 7

onto the separator.

Clutch spider separator:

90890-01711, YS-28890-C

Clutch separator adapter:

90890-01740, YS-34480

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PRIMARY SHEAVE AND DRIVE V-BELT

• Fit the primary sheave assembly onto the

adapter and secure the supporting plates 8.

NOTE:

Securely fit the projections on the adapter into the
fixed sheave holes.

• Set the bar wrench 9 onto the spider and turn

the special tool clockwise to loosen the spider.

CAUTION:

• The spider has a left-handed thread.
• Since a high torque is required to loosen the

spider, make sure that the spider, fixed
sheave and special tool are well secured.
Loosen the spider carefully to prevent cracks
and damage to the sheaves and spider.

• Remove the fixed sheave, fixed sheave stop-

per, and sliding sheave from the spider.

Clutch spider separator (bar 
wrench):

90890-01711, YS-28890-C

INSPECTION

1. Inspect:

• Spider
• Sliding sheave
• Fixed sheave
• Primary sheave cap

Cracks/damage 

→ Replace.