Craftsman 536.772321 Manual Del Usario página 12

Gasoline Requirements
All gasoline is not the same. If a starting or
performance problem is encountered after new
gasoline has been used, try another service station or
change brands.
This engine is designed to operate on gasoline. The
emission control system for this engine is EM (Engine
Modifications).
Type of gasoline to use
Always use gasoline that meets these requirements:
• Clean, fresh, unleaded gasoline.
• A minimun of 87 octane/87 AKI (91 RON). At
altitudes over 5,000 feet, see "High-altitude use".
• Gasoline with up to 10% ethanol (gasohol) or up
to 15% MTBE (methyl tertiary butyl ether), is
acceptable.
• Use of any gasoline other than those approved
above will void the engine warranty. Some
areas require that fuel pumps be marked if the
gasoline contains alcohols or ethers. If you are not
sure if your gasoline contains alcohol or ethers that
are different than those approved above, then
check with the service station operator.
• Do not modify the engine fuel system or
carburetor to run on alternative fuels.
• Never mix oil with gasoline.
Gasoline Storage
Follow these guidelines when storing gasoline for
longer than 30 days:
• If fuel stabilizer is used, you do not need to drain
gasoline prior to storage.
• If no fuel stabilizer is used, then always remove
gasoline from engine during storage.
Fuel stabilizer
• If you do not want to remove the gasoline, add a
fuel stabilizer to any gasoline left in the fuel tank. A
fuel stabilizer will minimize gum deposits and acids.
If the fuel tank is almost empty, mix the fuel
stabilizer with fresh gasoline in a separate
container and add the mixture to the fuel tank.
Always follow the instructions on the stabilizer
container. Start the engine. Let the engine run for 3
minutes to allow the mixture to reach the
carburetor.
High-altitude use
At higher altitudes (over 5,000 feet), 85 octane / 85
AKI (89 RON) gasoline can be used. Operation at
high altitude may require a high-altitude carburetor jet
kit to improve performance and decrease fuel
consumption.
Adding Fuel
1 Stop the engine. Before you remove gas cap (A),
let the engine cool at least 2 minutes.
2 Remove the gas cap. Fill the fuel tank (B) to
approximately 1-1/2 inches below top of neck to
allow for fuel expansion. Be careful, do not overfill.
3 Before starting the engine, replace the gas cap.
B
Figure 7."Gas Cap
WARNING
When Adding Fuel
• Stop the engine. Let engine cool at least 2
minutes before removing the gas cap.
• Fill fuel tank outdoors or in well-ventilated
area
• Do not overfill fuel tank. Fill tank to
approximately 1-1/2 inches below top of neck
to allow for fuel expansion.
• Keep gasoline away from sparks, open
flames, pilot lights, heat. and other ignition
sources.
• Check fuel lines, tank, cap, and fittings
frequently for cracks or leaks. Re place if
necessary.
12