OPERATING THE MOWER
Even with carburetor modification, engine horsepower will
decrease about 3.5% for each 300 meter (1,000 foot )
increase in altitude. The effect of altitude on horsepower will
be greater than this if no carburetor modification is made. A
reduction in engine horsepower will reduce mowing
performance.
When the carburetor is modified for high altitude operation,
the air-fuel mixture will be too lean for low altitude use.
INOTICEI
Operation at altitudes below 1,800 meters (6,000 feet), with
high altitude carburetor modifications, may cause the engine
to overheat and result in serious engine damage.
For low altitude use, reinstall the standard main fuel jet.
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