Owner`s manual

TRANSPORTING

If the engine has been running, allow it to cool for at least 15 minutes before loading the

engine-powered equipment on the transport vehicle. A hot engine and exhaust system can

burn you and can ignite some materials.

Keep the engine level when transporting to reduce the possibility of fuel leakage. Move

the fuel valve lever to the OFF position.

CARBURETOR MODIFICATION FOR 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 form 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 engine at altitudes above 5,000 feet (1,500 meters), have your

servicing center perform this carburetor modification. This engine, when operated at high

altitude with the carburetor modified for high altitudes 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 in horsepower will be

greater then this if no carburetor modification is made.

NOTE

When the carburetor has" been modiJied for high altitude operation, the air-_lel mixture

will be too lean for a low altitude use. Operation at altitudes' below 5,O00 feet (1,500

meters) with modified carburetor may cause the engine to overheat and result in serious

engine damage. For use at low altitudes', have your servicing center return the

carburetor to original factol_v specifications.