Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 32

4-17

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DRIVE CHAIN

DRIVE CHAIN

WITHOUT REVERSE MODEL

Order

Job name/Part name

Q’ty

Remarks

Drive chain removal

Remove the parts in the order listed below.

Right lower cover

Refer to “COVERS” in CHAPTER 3.

Brake caliper/Parking brake

Refer to “BRAKE”.

1

Shim

—

t = 0.5

2

Washer

1

t = 1.0

3

Brake disc

1

4

Collar

1

5

Drain bolt

1

Drain.

6

Chain tension adjusting bolt

1

Loosen.

7

Collar

1

8

Drive chain cover

1

9

Rubber seal

1

10

Chain tensioner

1

11

Washer

1

t = 0.5

12

Collar

1

Ê

Ë

Í

É

È

Ì

New

New

New

New

New

New

New

New

1 2

3

7

5

(5)

4

6

8

15

16

LT

17

18

13

11

10

12

9

14

6 Nm (0.6 m 

•

 kg, 4.3 ft 

•

 lb)

È:   

10 Nm (1.0 m 

•

 kg, 7.2 ft 

•

 lb)

É:   

16 Nm (1.6 m 

•

 kg, 11 ft 

•

 lb)

Ê:   

25 Nm (2.5 m 

•

 kg, 18 ft 

•

 lb)

Ë:   

28 Nm (2.8 m 

•

 kg, 20 ft 

•

 lb)

Ì:   

90 Nm (9.0 m 

•

 kg, 65 ft 

•

 lb)

Í:   

4-18

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DRIVE CHAIN

Order

Job name/Part name

Q’ty

Remarks

13

Drive chain

1

14

Collar

1

15

Drive sprocket

1

16

Collar

1

17

Driven sprocket

1

18

Collar

1

For installation, reverse the removal proce-
dure.

Ê

Ë

Í

É

È

Ì

New

New

New

New

New

New

New

New

1 2

3

7

5

(5)

4

6

8

15

16

LT

17

18

13

11

10

12

9

14

6 Nm (0.6 m 

•

 kg, 4.3 ft 

•

 lb)

È:   

10 Nm (1.0 m 

•

 kg, 7.2 ft 

•

 lb)

É:   

16 Nm (1.6 m 

•

 kg, 11 ft 

•

 lb)

Ê:   

25 Nm (2.5 m 

•

 kg, 18 ft 

•

 lb)

Ë:   

28 Nm (2.8 m 

•

 kg, 20 ft 

•

 lb)

Ì:   

90 Nm (9.0 m 

•

 kg, 65 ft 

•

 lb)

Í:   

4-19

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DRIVE CHAIN

REMOVAL

1. Remove:

• Driven sprocket 1 

NOTE:

While holding the front axle assembly with spanner
wrench 2, loosen the driven sprocket nut.

2

1

INSPECTION

1. Inspect:

• Drive chain cover

Cracks/damage 

→ Replace.

• Oil seals (drive chain cover)

Wear/damage 

→ Replace.

• Bearings

Pitting/damage 

→ Replace.

Replacement steps:

• Remove the circlip (drive chain cover).
• Remove the bearing(s) using a general bearing

puller.

• Install the new bearing(s).

NOTE:

Use a socket 1 that is the same size as the outside
diameter of the bearing race.

CAUTION:

Do not strike the inner race 2 or ball bearings
3. Contact only the outer race 4.

• Install a new circlip (drive chain cover).

CAUTION:

Always use new circlips.

2. Inspect:

• Drive sprocket
• Driven sprocket
• Chain tensioner

Pitting/wear/damage 

→ Replace the defective

part(s).

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DRIVE CHAIN

3. Measure:

• 14 link section 

a of the drive chain

Using a spring scale, pull on the drive chain
with 36 kg (80 lb) of force 

b.

Out of specification 

→ Replace the drive

chain.

NOTE:

• Measure the length between drive chain pin 1

and E as shown.

• Perform this measurement at two or three differ-

ent places.

If replacement is necessary, always replace the
chain and the sprockets as a set.

Maximum 14 link drive chain section 
length:

133.35 mm (5.25 in)
Limit: 137.35 mm (5.41 in)

4. Inspect:

• Drive chain

Stiffness 

→ Clean and lubricate or replace.

5. Measure:

• Brake disc thickness 

a 

Measure the brake disc thickness 1 ~ 3 mm
(0.04 ~ 0.12 in) from the edge of the brake
disc.
Out of specification 

→ Replace.

Minimum thickness:

3.5 mm (0.14 in)