2.5
General Information
2
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
GENERAL REFERENCE
Standard Bolt Torque Specification
Fuel / Oil Premix Ratios
Formula:
• 1 Gallon = 128 Ounces
• 128 / (Desired Ratio) = Ounces of oil for every 1
gallon of fuel.
• 128 / 40 (40:1 Ratio) = 3.2 ounces of oil for every 1
gallon of fuel.
Always mix ratio in 5 gallon increments.
NOTE: A 40:1 premix should always be used during
engine break-in or after re-building the engine.
Gasoline Volatility
When gasoline is blended, it is given a Reid Vapor
Pressure (RVP) number which reflects its ability to
vaporize or mix with air at a given temperature range.
Gasoline vapor pressure is measured by putting a sample
of fuel inside a closed container and applying a specified
amount of heat to the container for a certain amount of
time. RVP will vary from about 7.0 PSI during the summer
to approximately 13.5 PSI during the colder months.
Service stations selling a large volume of fuel will normally
have the correct blend to work well at all times throughout
the year in their local area.
When the weather is very cold, gasoline must be able to
vaporize very quickly in order for an engine to start and
warm up properly. If summer blend fuel is being used in the
winter, little or no vaporization will occur. Droplets will form
causing flooding and very hard starting.
If winter blend fuel is being used during the summer
months, it may cause vapor lock (boiling fuel) inside the
fuel lines, fuel pump, or carburetor. This will cause warm
engine driveability problems and hard starting when
warm.
BOLT SIZE
THREADS/IN
G
RADE 2
FT-LB(N-M)
G
RADE 5
FT-LB(N-M)
G
RADE 8
FT-LB(N-M)
1/4 20 5 (7) 8 (11) 12 (16)
1/4 28 6 (8) 10 (14) 14 (19)
5/16 18 11 (15) 17 (23) 25 (35)
5/16 24 12 (16) 19 (26) 29 (40)
3/8 16 20 (27) 30 (40) 45 (62)
3/8 24 23 (32) 35 (48) 50 (69)
7/16 14 30 (40) 50 (69) 70 (97)
7/16 20 35 (48) 55 (76) 80 (110)
1/2 13 50 (69) 75 (104) 110 (152)
1/2 20 55 (76) 90 (124) 120 (166)
FT-LB X 1.356 = N-M
N-M X.7376 = FT-LB
FUEL
(GALLONS)
40:1
RATIO
(OUNCES OF OIL)
45:1 RATIO
(OUNCES OF OIL)
50:1 RATIO
(OUNCES OF OIL)
1 3.2 2.8 2.6
5 161413
10 32 28 26
MAXIMUM REID VAPOR
AMBIENT AIR TEMP
RANGE
CLASS PRESSURE LOW HIGH
A 7.0 psi (0.5 bar) 60°F (16°C)
110°F+
(43°C+)
B 9.0 psi (0.6 bar) 50°F (10°C)
110°F
(43°C)
C 10.5psi (0.7 bar)
40°F
(4°C)
97°F (36°C)
D 12.0psi (0.8 bar)
30°F
(-1°C)
85°F (29°C)
E 13.5psi (0.9 bar)
20°F
(-7°C)
69°F (21°C)
Add 2.45°F for each 1000 ft (305m) above sea level
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