Yamaha Rx 1 User Guide

							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.
1Brake 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)
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							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.
1Lower 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
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							8-21
ESU01910 
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/RX10MSCD-11E
For RXW10/RXW10SCD-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. 
@
Spring seat lengthStandard
Long
←→Short
Preload Hard
←→Soft
a LengthMaximum
156.6 mm
(6.17 in)148.6 mm
(5.85 in)Minimum
146.6 mm
(5.77 in)
Spring seat lengthStandard
Long
←→Short
Preload Hard
←→Soft
a LengthMaximum
144.6 mm
(5.69 in)134.6 mm
(5.30 in)Minimum
134.6 mm
(5.30 in)
Spring seat lengthStandard
Long
←→Short
Preload Hard
←→Soft
a LengthMaximum
158.6 mm
(6.24 in)148.6 mm
(5.85 in)Minimum
148.6 mm
(5.85 in)
U8FA11.book  Page 21  Thursday, April 3, 2003  4:09 PM 
						

							8-22
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. 
@ 
ESU03240 
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. 
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							8-23
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
For RXW10/RXW10SCD-17E
For RX10/RX10S/RX10R/RX10RS/RXW10/RXW10SCD-14E
A
Spring seat lengthStandard
Long
←→Short
Preload Hard
←→Soft
È 
a Length (front)Maximum
107.0 mm
(4.21 in)97.0 mm
(3.82 in)Minimum
97.0 mm
(3.82 in)
Spring seat lengthStandard
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 1234567
Preload Soft Hard
É Standard (rear) 4
U8FA11.book  Page 23  Thursday, April 3, 2003  4:09 PM 
						

							8-24
For RX10M/RX10MSCD-13E
CD-14E
WARNING@ 
Be sure to have a Yamaha dealer make this adjust-
ment. 
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 sources, 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. 
@ 
C
Spring adjuster position 12345
Preload Soft Hard
Ê Standard (front) 3
DSpring adjuster position 1234567
Preload Soft Hard
Ë Standard (rear) 4
U8FA11.book  Page 24  Thursday, April 3, 2003  4:09 PM 
						

							8-25
ESU03890 
Rear suspension damping force adjustment
For RXW10/RXW10S
The damping force can be adjusted by turning the
adjuster 
1.
CD-20E
CAUTION:@ 

Do not continue to turn the adjuster in
directiona after it stops. The shock absorber
can be damaged and damping force adjustments
cannot be made. 

Do not turn the adjuster in direction b more than
16 clicks. Even if the adjuster is continually
turned after 16 clicks, there will be no change in
the damping force. 

Be sure to stop the adjuster at a position where
there is a click. 
@
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. 
@ 
Adjuster position
Turns out 
b
∗Turns in 
a
Damping force
Soft Hard
∗
With the adjuster fully turned lightly in direction a
16 clicks
out out
Minimum Standard7 clicks
out 1 click
Maximum
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							8-26
ESU01971 
Rear suspension full rate adjustment
The total suspension spring rate and damping character-
istics can be adjusted by changing the installed position
of the shock absorber.
WARNING@ 
Be sure to have a Yamaha dealer make this adjust-
ment. 
@CD-07E
NOTE:@ Be sure to make this adjustment when there is no load
(rider or cargo) on the snowmobile. 
@
1. Loosen the full rate adjusting nut 
1 1/2 or 3/4 turn,
while holding the adjusting bolt 
2 securely with a
wrench so it does not move.
CAUTION:@ 
Never allow the adjusting bolt 2 to move while loos-
ening the nut. 
@
2. Turn the adjusting bolt 
2 to the desired position.
CAUTION:@ 
Make sure that the adjusting bolt ends are set at the
same position on each side. 
@
3. While holding the adjusting bolt securely, tighten the
full rate adjusting nut 
1.
CAUTION:@ 
Never allow the adjusting bolt to move while tighten-
ing the nut. 
@ 
Installation position S M H
Spring rate and 
dampingSoft Medium Hard
Standard M
Full rate adjusting nut tightening torque: 
49 Nm (4.9 m·kgf, 35.4 ft·lb)
U8FA11.book  Page 26  Thursday, April 3, 2003  4:09 PM 
						

							8-27
ESU00292
Control rod adjustment
The weight transfer can be adjusted by turning the con-
trol rod adjusting nut 
1.
1. Loosen the locknut 
2 while holding the control rod
adjusting nut 
1.
2. To increase weight transfer, turn the adjusting nut in
direction 
a. To decrease weight transfer, turn the
adjusting nut in direction 
b.
3. Tighten the locknut. 
CAUTION:@ 

When using the two 22-mm wrenches included in the
tool kit, make sure that they are situated at a right
angle to the control rod as shown, and that they are
tightly fitted to the locknut and the control rod adjust-
ing nut.

The left and right adjusting nuts must be set to the
same position. Uneven settings can cause poor han-
dling and loss of stability. 
@
WARNING@ 
Never adjust the control rods beyond the maximum
range indicated on the rods with red paint 3. 
@
cAdjustable range 
dStandard position
Locknut tightening torque: 
25 Nm (2.5 m·kgf, 18.1 ft·lb)
U8FA11.book  Page 27  Thursday, April 3, 2003  4:09 PM 
						

							8-28
ESU00353
Drive track adjustment
WARNING@ 
A broken track, track fittings or debris thrown by the
drive track could be dangerous to an operator or
bystanders. Observe the following precautions: 

Do not allow anyone to stand behind the snow-
mobile when the engine is running. 

When the rear of the snowmobile is raised to
allow the drive track to spin, a suitable stand
must be used to support the rear of the snowmo-
bile. Never allow anyone to hold the rear of the
snowmobile off the ground to allow the drive
track to spin. Never allow anyone near a rotating
drive track. 

Inspect the drive track condition frequently.
Replace damaged slide metal. Replace the drive
track if it is damaged to the depth where fabric
reinforcement material is visible or support rods
are broken. Otherwise, track damage or failure
could result in loss of braking ability and snow-
mobile control, which could cause an accident. 
@
Drive track deflection measurement
1. Lay the snowmobile on its side.
2. Measure the drive track deflection with a spring
scale. Pull at the center of the drive track with a force
of 100 N (10 kg, 22 lb).
NOTE:@ Measure the gap between the slide runner and the edge
of the track window. Measure both sides. 
@
1Deflection 
2100 N (10 kg, 22 lb)
3. If the deflection is incorrect, adjust the drive track.
Standard drive track deflection: 
25–30 mm (0.98–1.18 in) / 100 N (10 kg, 22 lb)
U8FA11.book  Page 28  Thursday, April 3, 2003  4:09 PM