Technical Information; Serial Number Locations; Carburetor Modification For High Altitude Operation - Honda HRS216PDA Owner's Manual

Mowing and Bagging Problems
Possible Cause
Engine speed is too slow to cut
well
Mower is moving too fast for lawn
conditions
Cutting height adjustment levers
set at different positions
Grass bag overfilled or clogged
(HRR)
Mower deck is clogged
Blade(s) dull, worn, or damaged
Wrong blade(s) installed
Correction
Move the throttle lever to the FAST
position (page 6).
Walk slower (PDA). Release the drive
clutch lever and push slower
(SDA) (page 7).
Set all levers at the same cutting height
position (page 5).
Empty the grass bag. Wash the grass
bag if it is clogged with dirt (page 10).
Clean out the mower deck (page 13).
Sharpen or replace the blade(s) if
necessary (page 9).
Install correct blade(s) (page 18).

TECHNICAL INFORMATION

SERIAL NUMBER LOCATIONS

ENGINE
SERIAL
NUMBER
There are two serial numbers, one for the engine and one for the
mower frame. Record the engine and frame serial numbers in the
space below. You will need these serial numbers when ordering parts
and when making technical or warranty inquiries.
Engine serial number:_____________________________________
Frame serial number: _____________________________________
Date of purchase: ________________________________________
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 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 lawn mower 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 modifications for high altitude 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 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.
MODEL NAME
AND FRAME
SERIAL NUMBER
HR_216_ _ A AG
M_ _ _ –– _XXXXXX
AMERICAN HONDA MOTOR CO., INC.
AMERICAN HONDA MOTOR CO., INC.
ALPHARETTA, GA 30005-8847 ALPHARETTA, GA 30005-8847
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