General Reference; Standard Bolt Torque Specification; Fuel / Oil Premix Ratios; Gasoline Volatility - Polaris 340 LX 2007 Service Manual

GENERAL REFERENCE

Standard Bolt Torque Specification

Grade 2
Grade 5
1/4 20 5 (7)
1/4 28 6 (8)
5/16 18 11 (15)
5/16 24 12 (16)
3/8 16 20 (27)
3/8 24 23 (32)
7/16 14 30 (40)
7/16 20 35 (48)
1/2 13 50 (69)
1/2 20 55 (76)
- X 1.356 = N-
FT LB
N- X.7376 =
M

Fuel / Oil Premix Ratios

FUEL 40:1
RATIO
( )
GALLONS
( )
OUNCES OF OIL
1 3.2
5 16
10 32
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.
Grade 8
8 (11) 12 (16)
10 (14) 14 (19)
17 (23) 25 (35)
19 (26) 29 (40)
30 (40) 45 (62)
35 (48) 50 (69)
50 (69) 70 (97)
55 (76) 80 (110)
75 (104) 110 (152)
90 (124) 120 (166)
M
-
FT LB
45:1 50:1
RATIO RATIO
( ) ( )
OUNCES OF OIL OUNCES OF OIL
2.8 2.6
14 13
28 26
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
General Information

Gasoline Volatility

MAXIMUM REID VAPOR
CLASS PRESSURE
A 7.0 psi (0.5 bar)
B 9.0 psi (0.6 bar)
C 10.5psi (0.7 bar)
D 12.0psi (0.8 bar)
E 13.5psi (0.9 bar)
Add 2.45°F for each 1000 ft (305m) above sea level
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.
AMBIENT AIR TEMP
RANGE
LOW HIGH
110°F+
60°F (16°C)
(43°C+)
110°F
50°F (10°C)
(43°C)
40°F
97°F (36°C)
(4°C)
30°F
85°F (29°C)
(-1°C)
20°F
69°F (21°C)
(-7°C)
2.5
2