Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Manual - part 48

5-12

ENG

ENGINE ASSEMBLY

ENGINE ASSEMBLY

Order

Job name/Part name

Q’ty

Remarks

Engine assembly removal

Remove the parts in the order listed below.

1

Rear frame cross member

1

2

Front frame assembly

1

3

Engine mounting nut

3

4

Washer

2

5

Washer

1

6

Left front engine mounting bolt/washer

1/1

7

Right front engine mounting bolt

1

8

Engine mounting bracket

1

9

Left front engine mounting bolt spacer

1

10

Rear engine mounting bolt

1

11

Engine assembly

1

12

Right front engine mounting bolt spacer

1

13

Rear engine mounting bolt spacer

1

For installation, reverse the removal proce-
dure.

10

13

(3)

1

(4)

4

3

8

9

7

6

12

3

(4)

3

4

5

2

11

Ë

Ê

Ë

É

È

Ê

Ê

Ê

Ë

Ê

Ê

Ê

(3)

(3)

Ê

9 Nm (0.9 m 

•

 kg, 6.5 ft 

•

 lb)

È:   

25 Nm (2.5 m 

•

 kg, 18 ft 

•

 lb)

23 Nm (2.3 m 

•

 kg, 17 ft 

•

 lb)

É:   
Ê:   

65 Nm (6.5 m 

•

 kg, 47 ft 

•

 lb)

Ë:   

5-13

ENG

ENGINE ASSEMBLY

REMOVAL

1. Remove:

• Rear engine mounting nut
• Front engine mounting nuts
• Washers

NOTE:

Do not remove the engine mounting bolts.

2. Remove:

• Engine assembly

Removal steps:

• Screw in the engine mounting bolt spacers

(front and rear) using the engine mount spacer
wrench 1 so that there is a gap between each
engine mounting bolt spacer 2 and engine
damper 3.

• Remove the engine mounting bolts, and then

remove the engine assembly.

Engine mount spacer wrench:

90890-01516, YS-01516

2

3

1

INSTALLATION

NOTE:

After installing all parts, refer to “CABLE ROUT-
ING” in CHAPTER 9, to check the cable, lead and
hose routing.

1. Install:

• Engine assembly

NOTE:

Use the engine mount spacer wrench to tighten the
engine mounting bolt spacers.

5-14

ENG

ENGINE ASSEMBLY

Installation steps:

• Install the engine mounting bolt spacers (right

front and rear).

• Install the engine assembly and then, install the

rear engine mounting bolt, right front engine
mounting bolt and washers.

• Install the left front engine mounting bolt spacer

to engine mounting bracket and then install the
engine mounting bracket, left front engine
mounting bolt and washer.

• Tighten the rear engine mounting bolt spacer to

specification with an engine mount spacer
wrench 1.

• Tighten the rear engine mounting nut.

• Tighten the front engine mounting bolt spacers

2 (right and left) until they come to contact with
the engine damper 3.

NOTE:

Do not apply torque to the front engine mounting
bolt spacers.

• Install the washers and nuts and then, tighten

the front engine mounting nuts (right and left).

T

 

R

.

.

Engine mounting bracket nut:

25 Nm (2.5 m · kg, 18 ft · lb)

T

 

R

.

.

Rear engine mounting bolt spacer:

9 Nm (0.9 m · kg, 6.5 ft · lb)

Engine mount spacer wrench:

90890-01516, YS-01516

T

 

R

.

.

Rear engine mounting nut:

65 Nm (6.5 m · kg, 47 ft · lb)

T

 

R

.

.

Front engine mounting nut:

65 Nm (6.5 m · kg, 47 ft · lb)

2

3

1

5-15

ENG

CAMSHAFTS

CAMSHAFTS

CYLINDER HEAD COVER

Order

Job name/Part name

Q’ty

Remarks

Cylinder head cover removal

Remove the parts in the order listed below.

Fuel tank

Refer to “SEAT AND FUEL TANK”.

1

Cylinder head breather hose

1

2

Ignition coil

3

3

Spark plug

3

4

Cylinder head cover

1

5

Cylinder head cover gasket

1

6

Timing chain guide (top side)

1

For installation, reverse the removal proce-
dure.

New

13 Nm (1.3 m 

•

 kg, 9.4 ft 

•

 lb)

12 Nm (1.2 m 

•

 kg, 8.7 ft 

•

 lb)

È:

É:

New

4

6

2

1

3

(6)

5

È

É

LS