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Snowmobile Polaris DEEP SNOW (2005 year). Manual - part 7

GENERAL INFORMATION

2.7

SAE TAP DRILL SIZES

Thread Size

Drill Size

Thread Size

Drill Size

#0-80

3/64

#1-64

#1-72

#2-56

#2-64

#3-48

5/64

#3-56

#4-40

#4-48

#5-40

#5-44

#6-32

#6-40

#8-32

#8-36

#10-24

#10-32

#12-24

#12-28

4.6mm

1/4-20

1/4-28

5/16-18

5/16-24

3/8-16

3/8-24

7/16-14

7/16-20

25/64

1/2-13

27/64

1/2-20

29/64

9/16-12

31/64

9/16-18

33/64

5/8-11

17/32

5/8-18

37/64

3/4-10

21/32

3/4-16

11/16

7/8-9

49/64

7/8-14

13/16

1-8

7/8

1-12

59/64

1 1/8-7

63/64

1 1/8-12

1 3/64

1 1/4-7

1 7/64

1 1/4-12

1 11/64

1 1/2-6

1 11/32

1 1/2-12

1 27/64

1 3/4-5

1 9/16

1 3/4-12

1 43/64

2-4 1/2

1 25/32

2-12

1 59/64

2 1/4-4 1/2

2 1/32

2 1/2-4

2 1/4

2 3/4-4

2 1/2

3-4

2 3/4

METRIC TAP DRILL SIZES

Tap Size

Drill Size

Decimal Equivalent

Nearest Fraction

3 x .50

3 x .60

4 x .70

4 x .75

5 x .80

5 x .90

6 x 1.00

7 x 1.00

8 x 1.00

8 x 1.25

9 x 1.00

9 x 1.25

10 x 1.25

10 x 1.50

11 x 1.50

12 x 1.50

12 x 1.75

#39

3/32

#30

1/8

#19

#20

16/64

17/64

5/16

11/32

3/8

13/32

0.0995

0.0937

0.1285

0.125

0.166

0.161

0.196

0.234

0.277

0.265

0.3125

0.3437

0.339

0.375

0.406

3/32

1/8

11/64

5/32

13/64

15/64

9/32

17/64

5/16

11/32

3/8

13/32

GENERAL INFORMATION

2.8

CONVERSION CHART

Unit of Measure

Multiplied by

Converts to

ft. lbs.

x 12

= in. lbs.

in. lbs.

x .0833

= ft. lbs.

ft. lbs.

x 1.356

= Nm

in. lbs.

x .0115

= kg-m

x .7376

= ft. lbs.

kg-m

x 7.233

= ft. lbs.

kg-m

x 86.796

= in. lbs.

kg-m

x 10

= Nm

in.

x 25.4

= mm

x .03937

= in.

in.

x 2.54

= cm

mile (mi.)

x 1.6

= km

x .6214

= mile (mi.)

Ounces (oz)

x 28.35

= Grams (g)

Grams (g)

x 0.035

= Ounces (oz)

cc’s

x .03381

= Fluid Ounces (oz)

lb.

x .454

= kg

x 2.2046

= lb.

Cubic inches (cu in)

x 16.387

= Cubic centimeters (cc’s)

Cubic centimeters (cc’s)

x 0.061

= Cubic inches (cu in)

Imperial pints (Imp pt)

x 0.568

= Liters (l)

Liters (l)

x 1.76

= Imperial pints (Imp pt)

Imperial quarts (Imp qt)

x 1.137

= Liters (l)

Liters (l)

x 0.88

= Imperial quarts (Imp qt)

Imperial quarts (Imp qt)

x 1.201

= US quarts (US qt)

US quarts (US qt)

x 0.833

= Imperial quarts (Imp qt)

US quarts (US qt)

x 0.946

= Liters (l)

Liters (l)

x 1.057

= US quarts (US qt)

US gallons (US gal)

x 3.785

= Liters (l)

Liters (l)

x 0.264

= US gallons (US gal)

Pounds - force per square inch (psi)

x 6.895

= Kilopascals (kPa)

Kilopascals (kPa)

x 0.145

= Pounds - force per square inch (psi)

Kilopascals (kPa)

x 0.01

= Kilograms - force per square cm

Kilograms - force per square cm

x 98.1

= Kilopascals (kPa)

°C to °F: 9 (°C + 40) ÷ 5 -- 40 = °F
°F to °C: 5 (°F + 40) ÷ 9 -- 40 = °C

GENERAL INFORMATION

2.9

PISTON WASH AND SPARK PLUG COLOR

Changing temperature, barometer, altitude, and fuel supply are just a few of the factors that can affect the day to day performance

of your engine. That is why using Exhaust Gas Temperatures (EGTs) are important for maintaining optimum performance. There

are two methods for helping you determine what the EGTs are for your machine. Piston wash and the coloring of your spark

plug.The piston wash is by far the most valuable tool in concluding EGTs, with the spark plug color running a distant second.

Use the illustrations below to help you establish the EGTs for your machine.

If the wash is 1/4” - 3/8” and cocoa

brown, the machine’s EGTs are just right.

Wet and Black wash indicates too rich a fuel

mixture

A dry, ash colored piston indicates too lean a

mixture for the operating conditions.

If the plug is light to cocoa brown, the ma-

chine’s EGTs are just right.

If the plug is wet or very dark, the fuel is

running too rich.

A ash white plug with speckles indicates too

lean a mixture for the operating conditions.

Piston Wash

Spark Plug Color

Once the proper jetting is established, you can reference the EGT gauge for your baseline numbers. Then, if there is a rise or

fall of 25 degrees, you must jet accordingly to return your EGTs to the baseline numbers.

Correct

Wash

Dry

GENERAL INFORMATION

2.10

CYLINDER INSPECTIONS

CYLINDER HEAD INSPECTION

Inspect each piston dome area of the cylinder head for warping by plac-

ing a straight edge across the dome area.

With a feeler gauge measure any gap under the straight edge.

Replace cylinder head if measurement exceeds the service limit of

.003” (.08mm).

NOTE:

Cylinder Head Warp

Service Limit .003” (.08mm)

CYLINDER MEASUREMENT

Inspect each cylinder for wear, scratches, or damage. If no damage is evident, measure the cylinder for taper and out of round

with a telescoping gauge or a dial bore gauge. Measure the bore 1/2, from the top of the cylinder; in line with the piston pin and

90_ to the pin to determine if the bore is out of round. Repeat the measurements at the middle of the cylinder and the bottom

of the cylinder to determine taper or out of round at the bottom. Use the chart below and record all measurements.

TOP

MIDDLE

BOTTOM

Out of round =

Tx--Ty and By--Bx

Taper Limit=

Ty--By and Tx--Bx

Limit .003” (.08mm)

Top

Middle

Bottom

Cylinder Taper Limit: .002” MAX

Cylinder Out of Round Limit: .002”

Content .. 5 6 7 8 ..