Snowmobile Arctic Cat (2008 year). Manual - part 4

1-11

1

Fraction/Decimal 

Conversion Chart

Drill Bit Sizes

(Number) Chart

MM/IN. Conversion

Chart

8ths

16ths

32nds

64ths

64ths (cont)

1/8 = .125 1/16 = .0625 1/32 = .03125 1/64 = .015625 33/64 = .515625

1/4 = .250 3/16 = .1875 3/32 = .09375 3/64 = .046875 35/64 = .546875

3/8 = .375 5/16 = .3125 5/32 = .15625 5/64 = .078125 37/64 = .578125

1/2 = .500 7/16 = .4375 7/32 = .21875 7/64 = .109375 39/64 = .609375

5/8 = .625 9/16 = .5625 9/32 = .28125 9/64 = .140625 41/64 = .640625

3/4 = .750 11/16 = .6875 11/32 = .34375 11/64 = .171875 43/64 = .671875

7/8 = .875 13/16 = .8125 13/32 = .40625 13/64 = .203125 45/64 = .703125

—

15/16 = .9375 15/32 = .46875 15/64 = .234370 47/64 = .734375

—

—

17/32 = .53125 17/64 = .265625 49/64 = .765625

—

—

19/32 = .59375 19/64 = .296875 51/64 = .796875

—

—

21/32 = .65625 21/64 = .328125 53/64 = .828125

—

—

23/32 = .71875 23/64 = .359375 55/64 = .859375

—

—

25/32 = .78125 25/64 = .390625 57/64 = .890625

—

—

27/32 = .84375 27/64 = .421875 59/64 = .921875

—

—

29/32 = .90625 29/64 = .453125 61/64 = .953125

—

—

31/32 = .96875 31/64 = .484375 63/64 = .984375

No.

Size of 

Drill in 
Inches

No.

Size of 

Drill in 
Inches

No.

Size of 

Drill in 
Inches

No.

Size of 

Drill in 
Inches

1

.2280

21

.1590

41

.0960

61

.0390

2

.2210

22

.1570

42

.0935

62

.0380

3

.2130

23

.1540

43

.0890

63

.0370

4

.2090

24

.1520

44

.0860

64

.0360

5

.2055

25

.1495

45

.0820

65

.0350

6

.2040

26

.1470

46

.0810

66

.0330

7

.2010

27

.1440

47

.0785

67

.0320

8

.1990

28

.1405

48

.0760

68

.0310

9

.1960

29

.1360

49

.0730

69

.0292

10

.1935

30

.1285

50

.0700

70

.0280

11

.1910

31

.1200

51

.0670

71

.0260

12

.1890

32

.1160

52

.0635

72

.0250

13

.1850

33

.1130

53

.0595

73

.0240

14

.1820

34

.1110

54

.0550

74

.0225

15

.1800

35

.1100

55

.0520

75

.0210

16

.1770

36

.1065

56

.0465

76

.0200

17

.1730

37

.1040

57

.0430

77

.0180

18

.1695

38

.1015

58

.0420

78

.0160

19

.1660

39

.0995

59

.0410

79

.0145

20

.1610

40

.0980

60

.0400

80

.0135

mm

in.

mm

in.

mm

in.

mm

in.

.01

.00039

.51

.02008

1

.03937

51

2.00787

.02

.00079

.52

.02047

2

.07874

52

2.04724

.03

.00118

.53

.02087

3

.11811

53

2.08661

.04

.00157

.54

.02126

4

.15748

54

2.12598

.05

.00197

.55

.02165

5

.19685

55

2.16535

.06

.00236

.56

.02205

6

.23622

56

2.20472

.07

.00276

.57

.02244

7

.27559

57

2.24409

.08

.00315

.58

.02283

8

.31496

58

2.28346

.09

.00354

.59

.02323

9

.35433

59

2.32283

.10

.00394

.60

.02362

10

.39370

60

2.36220

.11

.00433

.61

.02402

11

.43307

61

2.40157

.12

.00472

.62

.02441

12

.47244

62

2.44094

.13

.00512

.63

.02480

13

.51181

63

2.48031

.14

.00551

.64

.02520

14

.55118

64

2.51968

.15

.00591

.65

.02559

15

.59055

65

2.55905

.16

.00630

.66

.02598

16

.62992

66

2.59842

.17

.00669

.67

.02638

17

.66929

67

2.63779

.18

.00709

.68

.02677

18

.70866

68

2.67716

.19

.00748

.69

.02717

19

.74803

69

2.71653

.20

.00787

.70

.02756

20

.78740

70

2.75590

.21

.00827

.71

.02795

21

.82677

71

2.79527

.22

.00866

.72

.02835

22

.86614

72

2.83464

.23

.00906

.73

.02874

23

.90551

73

2.87401

.24

.00945

.74

.02913

24

.94488

74

2.91338

.25

.00984

.75

.02953

25

.98425

75

2.95275

.26

.01024

.76

.02992

26

1.02362

76

2.99212

.27

.01063

.77

.03032

27

1.06299

77

3.03149

.28

.01102

.78

.03071

28

1.10236

78

3.07086

.29

.01142

.79

.03110

29

1.14173

79

3.11023

.30

.01181

.80

.03150

30

1.18110

80

3.14960

.31

.01220

.81

.03189

31

1.22047

81

3.18897

.32

.01260

.82

.03228

32

1.25984

82

3.22834

.33

.01299

.83

.03268

33

1.29921

83

3.26771

.34

.01339

.84

.03307

34

1.33858

84

3.30708

.35

.01378

.85

.03346

35

1.37795

85

3.34645

.36

.01417

.86

.03386

36

1.41732

86

3.38582

.37

.01457

.87

.03425

37

1.45669

87

3.42519

.38

.01496

.88

.03465

38

1.49606

88

3.46456

.39

.01535

.89

.03504

39

1.53543

89

3.50393

.40

.01575

.90

.03543

40

1.57480

90

3.54330

.41

.01614

.91

.03583

41

1.61417

91

3.58267

.42

.01654

.92

.03622

42

1.65354

92

3.62204

.43

.01693

.93

.03661

43

1.69291

93

3.66141

.44

.01732

.94

.03701

44

1.73228

94

3.70078

.45

.01772

.95

.03740

45

1.77165

95

3.74015

.46

.01811

.96

.03780

46

1.81102

96

3.77952

.47

.01850

.97

.03819

47

1.85039

97

3.81889

.48

.01890

.98

.03858

48

1.88976

98

3.85826

.49

.01929

.99

.03898

49

1.92913

99

3.89763

.50

.01969

1.0

.03937

50

1.96850 100 3.93700

1-12

Torque Conversions

(ft-lb/N-m)

Tightening Torque

(General Bolts)

Assembly Schematics/

Torque Specifications 

(Table of Contents)

Servicing Symbols................................................. 1-13
370 cc.................................................................... 1-14
570 cc.................................................................... 1-16
500 cc.................................................................... 1-18
600 cc.................................................................... 1-20
800 cc.................................................................... 1-22
1000 cc.................................................................. 1-24

Servicing Symbols

Listed in the table below are symbols indicating spe-

cial instructions and other important information nec-

essary for proper servicing. Please note the definition

for each symbol. These symbols are used throughout

this manual.

„NOTE: Before engine assembly, ensure all
threaded areas are clean to assure an accurate
torque value is achieved.

ft-lb

N-m

ft-lb

N-m

ft-lb

N-m

ft-lb

N-m

1

1.4

26

35.4

51

69.4

76

103.4

2

2.7

27

36.7

52

70.7

77

104.7

3

4.1

28

38.1

53

72.1

78

106.1

4

5.4

29

39.4

54

73.4

79

107.4

5

6.8

30

40.8

55

74.8

80

108.8

6

8.2

31

42.2

56

76.2

81

110.2

7

9.5

32

43.5

57

77.5

82

111.5

8

10.9

33

44.9

58

78.9

83

112.9

9

12.2

34

46.2

59

80.2

84

114.2

10

13.6

35

47.6

60

81.6

85

115.6

11

15

36

49

61

83

86

117

12

16.3

37

50.3

62

84.3

87

118.3

13

17.7

38

51.7

63

85.7

88

119.7

14

19

39

53

64

87

89

121

15

20.4

40

54.4

65

88.4

90

122.4

16

21.8

41

55.8

66

89.8

91

123.8

17

23.1

42

57.1

67

91.1

92

125.1

18

24.5

43

58.5

68

92.5

93

126.5

19

25.8

44

59.8

69

93.8

94

127.8

20

27.2

45

61.2

70

95.2

95

129.2

21

28.6

46

62.6

71

96.6

96

130.6

22

29.9

47

63.9

72

97.9

97

131.9

23

31.3

48

65.3

73

99.3

98

133.3

24

32.6

49

66.6

74

100.6

99

134.6

25

34

50

68

75

102

100

136

Type of Bolt

Thread 

Diameter A 

(mm)

 Tightening 

Torque 

(Conventional or 4 Marked Bolt)

5

12-36 in.-lb

6

36-60 in.-lb

8

7-11 ft-lb

10

16-25 ft-lb

(7 Marked Bolt)

5

24-48 in.-lb

6

6-8 ft-lb

8

13-20 ft-lb

10

29-43 ft-lb

! CAUTION

Torque values have a range of + or - 20%.

SYMBOL

DESCRIPTION

Torque control required

243 - apply blue Loctite #243
270 - apply green Loctite #270
271 - apply red Loctite #271
609 - apply green Loctite #609

Lubricate with Arctic Cat 50:1 
Injection Oil - Non-APV Engines
Lubricate with Arctic Cat Synthetic 
APV 2-Cycle Oil - APV Engines

Lubricate with Arctic Cat 
Low-Temp Grease

3B - Three Bond Sealant
HT - High-Temp Sealant
AS - Anti-Seize Thread Compound

1-13

1

370 cc

370-ENG08

1-14

370ENG08_2