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If high electrical loads are connected simultaneously, turn the Eco-Throttle switch to the OFF position to
reduce voltage changes.
The Eco-Throttle system is not effective for use with appliances that require only momentary power. If the
tool OR appliance will be turned ON and OFF quickly, the Eco-Throttle switch to the OFF position.
ECO-THROTTLE SWITCH
HIGH ALTITUDE OPERATION
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.
Operation at an altitude that differs from that at which this engine was certified, 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 servicing dealer perform
this carburetor modification. This engine, when operated at high altitude with the 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.
NOTICE!
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 5,000 feet(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.
5. PRE-OPERATION CHECK
ENGINE OIL
NOTICE!
Engine oil is a major factor affecting engine performance service life. Non detergent and
2-stroke engine oils will damage the engine and are not recommended.
Check the oil level before each use with the generator on a level surface and the engine stopped. Use
4-stroke motor oil that meets or exceeds the requirements for API service classification SF, Always
check the API SERVICE label on the oil container to be sure it includes the letter SF. SAE 15W-40 is
recommended for generator, all-temperature use. Other viscosities shown in the chart may be used
when the average temperature in your area is within the indicated range.
