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High altitude operation
At higher altitudes, the standard carburetor air-fuel mixture will be excessively rich. Performance
will decrease, and fuel consumption will increase. Power output will decrease 3.5% for each 1000
feet (305 m) above sea level.
High altitude performance can be improved by installing a smaller diameter main fuel jet in the
carburetor. If you always operate the generator at altitudes higher than 5000 feet or 1500 meters
above sea level, have your authorized dealer install a high altitude main jet.
Even with suitable carburetor jetting, engine horsepower will decrease approximately 3.5% for
each 1000 feet or 305 meter increase in altitude. The affect of altitude on the horsepower will be
greater than this if no carburetor modification is made.
■ Operation of the generator at an altitude lower than the carburetor is jetted for may result in
reduced performance, overheating, and serious engine damage caused by an excessively lean
air/fuel mixture.
■ Be sure to have any modification reversed at lower altitudes.
Temperature
High temperature adversely affects generator operation. Generator performance will decrease 1%
for each 10°F (5.5°C) increase in temperature above 85°F (29°C) The normal operating range of
this generator is -20° to 113° F (-29° to 45°C)
■ Do not operate the generator when the ambient temperature is below -20°F (-29°C)
■ Do not operate the generator when the ambient temperature exceeds 113°F (45°C)
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