Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 37

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BRAKE

BRAKE CALIPER DISASSEMBLY

NOTE:

Before disassembling a caliper, drain brake fluid
from brake hose, master cylinder, brake caliper and
brake reservoir of their brake fluid.

1. Remove:

• Brake caliper pistons
• Brake caliper piston dust seals
• Brake caliper piston seals

Removal steps:

• Using a piece of wood, lock the pistons.
• Blow compressed air into the hose joint opening

a to force out the pistons from the caliper body.

WARNING

Never try to pry out the pistons.

a

BRAKE CALIPER INSPECTION AND 
REPAIR

WARNING

All internal brake components should be
cleaned only with new brake fluid. Do not use
solvents as they will cause seals to swell and
distort.

Recommended brake component 

replacement schedule

Brake pads

As required

Piston dust seals

Every two years

Piston seals

Every two years

Brake hose

Every four years

Brake fluid

Only when brakes are 
disassembled.

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BRAKE

1. Inspect:

• Brake caliper pistons

Scratches/rust/wear 

→ Replace the caliper 

assembly.

• Brake caliper cylinder

Wear/scratches 

→ Replace the caliper

assembly.

• Brake caliper body

Cracks/damage 

→ Replace.

• Brake fluid delivery passage (caliper body)

Blow out with compressed air.

WARNING

Replace the piston seals and piston dust seals
whenever a caliper is disassembled.

BRAKE CALIPER ASSEMBLY

WARNING

• All internal parts should be cleaned only with

new brake fluid.

• Internal parts should be lubricated with brake

fluid when installed.

• Replace the piston seals and piston dust

seals whenever a caliper is disassembled.

Recommended brake fluid:

DOT 4

BRAKE CALIPER INSTALLATION

1. Install:

• Brake hose 1 

CAUTION:

When installing the brake hose 1 onto the
brake caliper 2, make sure that the brake pipe
touches the projection 

a on the brake caliper.

T

 

R

.

.

Brake hose union bolt:

30 Nm (3.0 m · kg, 22 ft · lb)

a

1

2

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BRAKE

BRAKE MASTER CYLINDER

Order

Job name/Part name

Q’ty

Remarks

Brake master cylinder removal

Remove the parts in the order listed below.

Brake fluid

Drain.

Left handlebar switch

Refer to “STEERING” in CHAPTER 3.

1

Left wind deflector

1

2

Wind deflector bracket holder

1

3

Left wind deflector bracket

1

4

Brake switch

1

5

Brake  lever

1

6

Brake hose union bolt

1

7

Brake master cylinder holder

1

8

Parking brake cable

1

Disconnect.

9

Parking brake lever

1

10

Master cylinder assembly

1

For installation, reverse the removal proce-
dure.

È

É

É

Ê

Ë

1

4

3

2

9

7

6

5

8

10

4

5

1

2

3

7 Nm (0.7 m 

•

 kg, 5.1 ft 

•

 lb)

È:   

10 Nm (1.0 m 

•

 kg, 7.2 ft 

•

 lb)

É:   

23 Nm (2.3 m 

•

 kg, 17 ft 

•

 lb)

Ê:   

30 Nm (3.0 m 

•

 kg, 22 ft 

•

 lb)

Ë:   

S

New

New

LT

LT

4-40

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BRAKE

Order

Job name/Part name

Q’ty

Remarks

Brake master cylinder disassembly

Remove the parts in the order listed below.

1 

Brake master cylinder reservoir cap

1

2 

Brake master cylinder reservoir diaphragm 
holder

1

3 

Brake master cylinder reservoir diaphragm

1

4 

Brake master cylinder kit

1

5 

Brake master cylinder body

1

For assembly, reverse the disassembly pro-
cedure.

È

É

É

Ê

Ë

1

4

3

2

9

7

6

5

8

10

4

5

1

2

3

7 Nm (0.7 m 

•

 kg, 5.1 ft 

•

 lb)

È:   

10 Nm (1.0 m 

•

 kg, 7.2 ft 

•

 lb)

É:   

23 Nm (2.3 m 

•

 kg, 17 ft 

•

 lb)

Ê:   

30 Nm (3.0 m 

•

 kg, 22 ft 

•

 lb)

Ë:   

S

New

New

LT

LT