Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 9

2-25

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ADJ

EXHAUST SYSTEM INSPECTION

EXHAUST SYSTEM INSPECTION

1. Remove:

• Fuel tank

Refer to “SEAT AND FUEL TANK” in CHAP-
TER 5.

2. Inspect:

• Exhaust pipe joints 1 
• Exhaust pipe 2 
• Muffler 3 
• Exhaust pipe bands 4 
• Muffler band 5 

Cracks/damage 

→ Replace.

• Exhaust pipe joint gasket 6 
• Muffler gasket 7 

Exhaust gas leaks 

→ Replace.

3. Inspect:

• Tightening torque

4. Install:

• Fuel tank

Refer to “SEAT AND FUEL TANK” in CHAP-
TER 5. 

T

 

R

.

.

Exhaust pipe joint bolt 8:

25 Nm (2.5 m · kg, 18 ft · lb)

Exhaust pipe band bolt 9:

9 Nm (0.9 m · kg, 6.5 ft · lb)

Muffler bolt (rear side) 0:

23 Nm (2.3 m · kg, 17 ft · lb)

Muffler bolt (front side) A:

23 Nm (2.3 m · kg, 17 ft · lb)

Muffler band bolt B:

20 Nm (2.0 m · kg, 14 ft · lb)

Exhaust pipe bolt C:

23 Nm (2.3 m · kg, 17 ft · lb)

A

8

9

B

A

5

2

C

6

7

3

0

1

(6)

(3)

4

2-26

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SHEAVE OFFSET ADJUSTMENT

POWER TRAIN

SHEAVE OFFSET ADJUSTMENT

1. Remove:

• Left side cover
• Drive guard

Refer to “COVERS” in CHAPTER 3.

2. Remove:

• Drive V-belt

3. Measure:

• Sheave offset 

a 

Use a straightedge that is approximately
470 mm (18.5 in) long, 20 mm (0.79 in) wide,
and 4 mm (0.16 in) thick.
Out of specification 

→ Adjust.

NOTE:

Push the secondary sheave inward towards the
frame, and then measure the sheave offset.

Sheave offset:

13.5 ~ 16.5 mm (0.53 ~ 0.65 in)

4. Adjust:

• Sheave offset

Adjustment steps:

• Apply the brake to lock the secondary sheave.
• Remove the secondary sheave bolt 1, washer

2, shim(s) (left), and secondary sheave 3.

• Install the appropriate shim(s) (right) 4 from the

following table so that the sheave offset is within
specification.

Shim size

Part number

Thickness

90201-286K9

1.0 mm (0.04 in)

1

2

3

4

2-27

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SHEAVE OFFSET ADJUSTMENT

• Install the secondary sheave, secondary

sheave bolt and washer.

• Recheck the sheave offset. If out of specifica-

tion, repeat the above steps.

NOTE:

When adjusting the sheave offset, the secondary
sheave free play (clearance) should be adjusted.

T

 

R

.

.

Secondary sheave bolt:

64 Nm (6.4 m · kg, 46 ft · lb)

5. Measure:

• Secondary sheave free play (clearance) 

a 

Use a feeler gauge.
Out of specification 

→ Adjust.

Secondary sheave free play (clear-
ance):

1.0 ~ 2.0 mm (0.04 ~ 0.08 in)

6. Adjust:

• Secondary sheave free play (clearance)

Adjustment steps:

• Apply the parking brake to lock the secondary

sheave.

• Remove the secondary sheave bolt 1 and

washer 2.

• Install the appropriate shim(s) (left) 3 from the

following table so that the secondary sheave
free play is within specification.

Shim size

Part number

Thickness

90201-252F1

0.5 mm (0.02 in)

90201-25527

1.0 mm (0.04 in)

2-28

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DRIVE V-BELT

DRIVE V-BELT

WARNING

When installing the new V-belt, make sure that
it is positioned from 1.5 mm (0.06 in) above
the edge of the secondary sheave to –0.5 mm
(–0.02 in) below the edge 

a.

If the V-belt is not positioned correctly, the
clutch engagement speed will be changed. The
snowmobile may move unexpectedly when the
engine is started.
Adjust the V-belt position by removing or add-
ing a spacer 1 on each adjusting bolt 2.

CAUTION:

As the V-belt wears, adjustment may be neces-
sary. To ensure proper clutch performance, the
V-belt position should be adjusted by adding a
spacer on each adjusting bolt when the V-belt
position reaches 1.5 mm (0.06 in) below the
edge.

New belt width:

34.1 mm (1.34 in)

Belt wear limit width:

32.5 mm (1.28 in)

1. Measure:

• V-belt position 

a 

NOTE:

Install the new V-belt onto the secondary sheave
only. Do not force the V-belt between the sheaves;
the sliding and fixed sheaves must touch each
other.

Standard V-belt height:

–0.5 ~ 1.5 mm (–0.02 ~ 0.06 in)