Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 8

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ENGINE OIL REPLACEMENT

9. Remove:

• Oil pan engine oil drain bolt 1 

NOTE:

A “

” mark 

a is stamped in the oil pan near the oil

pan drain bolt.

a

1

10. Remove:

• Oil tank engine oil drain bolt 1 

11. Drain:

• Engine oil

(completely from the oil pan and oil tank)

12. If the oil filter cartridge is also to be replaced,

perform the following procedure.

1

Replacement steps:

• Remove the oil filter cartridge 1 with an oil filter

wrench 2.

NOTE:

Make sure that the O-ring is removed together with
the oil filter cartridge. If the O-ring remains attached
to the crankcase, oil leakage may occur.

• Apply a thin coat of engine oil onto the O-ring 3

of the new oil filter cartridge.

CAUTION:

Make sure that the O-ring 3 is positioned cor-
rectly in the groove of the oil filter cartridge.

• Tighten the new oil filter cartridge to specifica-

tion with an oil filter wrench.

Oil filter wrench:

90890-01469
YM-01469

T

 

R

.

.

Oil filter cartridge:

17 Nm (1.7 m · kg, 12 ft · lb)

2

1

3

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ENGINE OIL REPLACEMENT

13. Install:

• Drain bolts

(along with the new gaskets)

14. Fill:

• Engine oil

(with the specified amount of the recom-
mended engine oil)
Add 2.0 L (1.76 Imp qt, 2.11 US qt) of the rec-
ommended engine oil to the oil tank, and then
install and tighten the oil level gauge and the
cylinder head oil filler cap.

15. Inspect:

• Engine and oil tank

(for oil leaks)

16. Inspect:

• Engine oil level

Refer to “ENGINE OIL LEVEL INSPECTION”.

T

 

R

.

.

Oil tank engine oil drain bolt:

16 Nm (1.6 m · kg, 11 ft · lb)

Oil pan engine oil drain bolt:

10 Nm (1.0 m · kg, 7.2 ft · lb)

Quantity:

Total amount:

3.90 L (3.43 Imp qt, 4.12 US qt)

Periodic oil change:

3.00 L (2.64 Imp qt, 3.17 US qt)

With oil filter cartridge replace-
ment:

3.20 L (2.82 Imp qt, 3.38 US qt)

17. Inspect:

• Engine oil pressure

Inspection steps:

• Slightly loosen the oil check bolt 1.
• Start the engine and keep it idling until engine

oil starts to seep from the oil check bolt.
If no engine oil comes out after one minute, turn
the engine off so that it will not seize.

• Check the engine oil passages, the oil filter and

the oil pump for damage or leakage.

• Start the engine after solving the problem(-s)

and check the engine oil pressure again.
Tighten the oil check bolt to specification.

T

 

R

.

.

Oil check bolt:

20 Nm (2.0 m · kg, 14 ft · lb)

1

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CYLINDER HEAD BREATHER HOSE 
INSPECTION

1. Inspect:

• Cylinder head breather hose 1 

Cracks/damage 

→ Replace.

Loosen connection 

→ Connect properly.

CAUTION:

Make sure that the cylinder head breather hose
is routed correctly.

1

THROTTLE BODY JOINTS INSPECTION

1. Inspect:

• Throttle body joints 1 

Cracks/damage 

→ Replace the defective

parts.
Refer to “THROTTLE BODY” in CHAPTER 7.

1

CHECKING THE AIR FILTER ELEMENT

1. Remove:

• Headlight stay

Refer to “COVERS” in CHAPTER 3.

2. Remove:

• Air filter case cover 1 

NOTE:

Slide the air filter case cover toward the right side of
the snowmobile and remove it.

3. Lift up the air filter element frame 1 and

remove the air filter element.

1

1

CYLINDER HEAD BREATHER HOSE INSPECTION/

THROTTLE BODY JOINTS INSPECTION/

CHECKING THE AIR FILTER ELEMENT

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CHECKING THE AIR FILTER ELEMENT

4. Clean:

• Air filter element

NOTE:

Remove the snow.

5. Inspect:

• Air filter element

Damage/clogs 

→ Replace.

6. Install:

• Air filter element
• Air filter element frame
• Air filter case cover

NOTE:

Push down on the air filter element frame until a
click is heard.