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WARNING: DO NOT OVERFILL THE FUEL TANK, LEAVE ROOM
FOR THE FUEL TO EXPAND.
GENERAL RECOMMENDATIONS
• Purchase gasoline in small quantities and store in clean, approved
containers.
• To minimize gum deposits in your fuel system and to insure easy
starting, do not use gasoline left over from the previous season.
• Do not add oil to the gasoline.
FUEL TYPE
• For best results use only clean, fresh, unleaded gasoline with a
pump sticker octane rating of 87 or higher.
• Unleaded gasoline is recommended as it leaves less combustion
chamber deposits.
GASOLINE/ALCOHOL BLENDS:
Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is
approved, as a fuel. Other gasoline/alcohol blends are not approved.
GASOLINE/ETHER BLENDS:
Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blends (up
to a maximum of 15% MTBE by volume) are approved as a fuel. Other
gasoline/ether blends are not approved.
HIGH ALTITUDE
At high altitude, the standard carburetor air/fuel mixture will be too rich.
Performance will decrease, and fuel consumption will increase. A very
rich mixture will also foul the spark plug and cause hard starting. Opera-
tion at an altitude that differs from that at which this engine was certi-
fied, for extended periods of time, may increase emissions.
High altitude performance can be improved by specific modifications
to the carburetor. If you always operate your generator at altitudes
above 5,000 feet (1,500 meters), have your dealer perform this carbure-
tor modification. This engine, when operated at high altitude with the
carburetor modifications for high altitude use, will meet each emission
standard throughout its useful life.
Even with carburetor modification, engine horsepower will decrease
about 3.5% for each 1,000-foot (300-meter) increase in altitude. The
effect of altitude on horsepower will be greater than this if no carburetor
modification is made.
NOTE:When the carburetor has been modified for high altitude
operation, the air/fuel mixture will be too lean for low altitude
use. Operation at altitudes below 5,000feet (1,500 meters) with a
modified carburetor may cause the engine to overheat and result
in serious engine damage.
For use at low altitudes, have your servicing dealer return the carburetor
to original factory specifications.
Operator's Manual
PREPARING THE GENERATOR
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