520 Single Stage Snowthrower
Fill Gas Tank
Fuel and Oil Mixture
The snowthrower uses a two cycle engine that requires a mixture of fuel (gasoline) and oil for lubrication of engine bearings and other moving parts.
The correct fuel/oil mixture ratio for the five horsepow- er engine is 50 to 1. Use fuel/oil mixture chart shown.
NOTE: To prevent damage to engine, carefully observe recommended fuel to oil mixing ratio and procedures.
•Gasoline and oil must be premixed in a clean fuel container.
•Always use fresh, unleaded, winter grade fuel
•Never put plain, unmixed fuel into fuel tank. Shake fuel container each time before filling fuel tank.
•Never use “stale” fuel left over from last season or stored for long periods.
•DO NOT USE MULTI VISCOSITY OILS, SUCH AS
Proper Fuel Mixing Procedure
1.Fill approved clean fuel container one quarter full with fresh unleaded fuel - one quart (one liter) in a one gallon (4 liter) container.
2.Pour recommended amount of high quality two cycle oil — 2.5 ounces (80 ml) into fuel container for one gallon (4 liters) of fuel. (NOTE: DO NOT
USE MULTI VISCOSITY OILS, SUCH AS 10W-30 or 10W-40.)
3.Reinstall cap on the fuel container and shake con- tainer vigorously so oil mixes with gasoline.
4.Unscrew cap and fill container with fuel. Shake container again.
5.Remove fuel tank cap and carefully pour mixed fuel into the fuel tank, filling to 1/2 inch (1.5 cm) below filler neck to allow room for expansion. Never put plain, unmixed fuel into fuel tank. Shake fuel container each time before filling fuel tank.
FUEL TO OIL MIXTURE CHART (50:1)
U.S. | Imperial | Metric |
Gasoline 2 Cycle Oil Gasoline 2 Cycle Oil Gasoline 2 Cycle Oil
Gallons | Ounces | Gallons | Ounces | Liters | Milliliters |
1 | 2.5 | 1 | 2.8 | 4 | 80 ml |
2 | 5 | 2 | 5.6 | 8 | 160 ml |
5 | 13 | 5 | 14.1 | 20 | 400 ml |
WARNING
Gasoline is highly flammable and must be handled with care. Never fill the tank when the engine is hot or running. Always move outdoors to fill the tank. Keep snowthrower and gasoline away from open flame or spark.
A BCD
Figure 4. Proper Fuel Mixing Procedure
A.Fill Container with 1 Quart (1 Liter) of fuel
B.2.5 Ounces (80 ml) of
C.Combine in container, then shake container
D.Additional fuel brings total to 1 Gallon (4 liters)
5/2005 | 5 |
