High Altitude Operation - Honda HRA214 Owner's Manual

3. Check the grass bag for fraying, tears and clogged
mesh. Wash the bag with water if necessary, and
let it dry thoroughly. Grass will not chute proper-
ly without adequate ventilation through the bag.
Make sure the lock lever is latched securely.
4. Check the blade bolts for tightness.
Torque: 5-O-6.0 kg m (36.2-43.4 ft lb)
* To be certain that the engine will not start acciden-
tally. remove the spark plug cap before performing
this inspection.
5. Check and clean the air cleaner element if it is
dirty (p. 25).
0 Hight altitude operation
At high altitude, the standard carburetor air-fuel
mixture will be excessively rich. Performance will
decrease, and fuel consumption will increase.
High altitude performance can be improved by instal-
ling a smaller diameter main fuel jet in the carburetor
and readjusting the pilot screw. If you always operate
the mower at altitudes higher than 6,000 feet above sea
level, have your authorized Honda Rotary Mower
dealer perform these carburetor modifications.
Even with suitable carburetor jetting, engine horse-
power will decrease approximately 3.5 % for each 1,
000 foot increase in altitude. The affect of altitude on
horsepower will be greater than this if no carburetor
modification in made.
Operation of the mower at an altitude lower than the
carburetor is jetted
for
may result in reduced perfor-
mance, overheating, and serious engine damage
caused by an excessively lean air/fuel mixture.