Snowmobile Yamaha RX1 (2003 year). Manual - part 18

8-19

ESU00174 

Checking the brake pads

Check the brake pads for wear. 
If the brake pads reach the wear limit, ask a Yamaha
dealer to replace them.

1 Brake pad wear indicator

ESU00352

Checking the parking brake pads

Check the parking brake pads for wear by measuring the
thickness of the pads. If the parking brake pads reach
the wear limit, ask a Yamaha dealer to replace them.

Adjustment
As the parking brake pads wear, adjustment may be nec-
essary to ensure proper brake performance.

WARNING

@ 

Be sure to have a Yamaha dealer make this adjust-
ment. 

@

1. Loosen the locknut 

1 and the adjusting bolt 2. 

2. Loosen the cable locknut 

3. 

3. Turn the cable adjuster 

4 in or out to adjust the cable

length.

4. Tighten the cable locknut.
5. Turn the adjusting bolt in or out to adjust the clear-

ance between the parking brake pads 

5 and the

brake disc 

6.

6. Tighten the locknut.

Wear limit 

a: 1.5 mm (0.06 in) 

Wear limit 

a: 1.0 mm (0.04 in)

Cable length 

a: 43.5–46.5 mm (1.713–1.831 in)

Clearance 

b + c: 1.5–2.0 mm (0.059–0.079 in)

8-20

ESU00180 

Checking the brake fluid level

Place the snowmobile on a level surface. Check that the
brake fluid is above the lower level and replenish when
necessary.
1 Lower level

WARNING

@ 

Be careful that water does not enter the master cylin-
der when refilling. Water will significantly lower the
boiling point of the fluid and may result in vapor
lock. 
If the brake fluid level goes down, consult a Yamaha
dealer. 

@

CAUTION:

@ 

Brake fluid may deteriorate painted surfaces or plas-
tic parts. Never spill any fluid. If any is spilled, clean
it up immediately. 

@

ESU00181

Brake fluid replacement

Brake fluid replacement is necessary when the following
components are replaced during the periodic mainte-
nance or if they are damaged or leaking.

a. All oil seals of the master cylinder and caliper cylinder

b. The brake hose

WARNING

@ 

Make sure that the brake fluid and the above parts
are replaced by a Yamaha dealer. 

@ 

ESU00183 

Suspension

The suspension can be adjusted to suit rider preference.
A softer setting, for example, may provide greater rider
comfort, while a harder setting may allow more precise
handling and control over certain types of terrain or riding
conditions.

WARNING

@ 

Be sure to have a Yamaha dealer make this adjust-
ment. 

@

Specified brake fluid: DOT 4

8-21

ESU00191 

Ski spring preload adjustment
The spring preload can be adjusted by turning the spring
preload adjuster 

1.

For RX10/RX10S/RX10R/RX10RS

CD-11E

For RX10M/RX10MS

CD-11E

CAUTION:

@ 

The left and right ski spring preload must be set to
the same pressure. Uneven settings can cause poor
handling and loss of stability. 

@

WARNING

@ 

This shock absorber contains highly pressurized
nitrogen gas. It could explode by improper handling,
causing injury, or property damage. 

●

Do not tamper with or attempt to open the shock
absorber. 

●

Do not subject the shock absorber to an open
flame or other high heat source, which could
cause it to explode. 

●

Do not deform or damage the shock absorber in
any way. 

●

Do not dispose of a worn or damaged shock
absorber by yourself. Take the unit to a Yamaha
dealer. 

@ 

Spring seat length

Standard

Long

←

→

Short

Preload

Hard

←

→

Soft

a Length

Maximum
156.6 mm
(6.17 in)

148.6 mm

(5.85 in)

Minimum
146.6 mm
(5.77 in)

Spring seat length

Standard

Long

←

→

Short

Preload

Hard

←

→

Soft

a Length

Maximum
144.6 mm
(5.69 in)

134.6 mm

(5.30 in)

Minimum
131.6 mm
(5.18 in)

8-22

ESU00324

Rear suspension spring preload adjustment
The rear suspension is equipped with two shock absorb-
ers. One is in the front 

1 and the other is in the rear 2 of

the rear suspension assembly. 

The spring preload can be adjusted by turning the spring
preload adjuster 

3 on the front and rear shock absorb-

ers.

For RX10/RX10S/RX10R/RX10RS

CD-17E 

CD-14E

A

Spring seat length

Standard

Long

←

→

Short

Preload

Hard

←

→

Soft

È a Length (front)

Maximum
127.0 mm
(5.0 in)

117.0 mm

(4.61 in)

Minimum
117.0 mm
(4.61 in)

B

Spring  adjuster  position

1

2

3

4

5

6

7

Preload

Soft

Hard

É Standard (rear)

4