High Altitude Operation; Specifications - Honda HRX217U Owner's Manual

High Altitude Operation

At high altitudes, 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 610 metres, 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 300-metre 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 610 metres 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.

Specifications

Mower Features
HRX217K6HZU Honda rotary mower, 530 mm mower deck,
self-charging electric start, Clip Director,
hydrostatic transmission, blade brake clutch,
Dimensions and Weights
Length
Width
Overall height *
Dry weight
Cutting width
Cutting heights (7)
Grass bag
capacity
Noise level
* 32 mm cutting height and handle in highest position
Engine Design and Performance
Model
Type
Displacement
Bore and stroke
Compression ratio
Ignition system
18
Auto Choke System
1665 mm
588 mm
1122 mm
47.9 kg
530 mm
19 ~ 101 mm
76 L
97 dB(A)
GCV200
4-stroke, single-cylinder,
air-cooled
3
201 cm
66.0 x 59.0 mm
8.0:1
Transistorized magneto
Transmission Design and Performance
Transmission type
Ground speed
Maintenance
Fuel Unleaded petrol with a pump
octane rating of 86 or higher containing
no more than 10% ethanol by volume
Capacity: 0.91 litres
See "AVOIDING FUEL-RELATED
PROBLEMS" on page 19
Blade Bolt
Torque
Engine Oil SAE 10W-30, API SJ or later
Capacity: 0.40 litres
Refill amount: 0.35 ~ 0.40 litres*
Spark Plug Type: NGK - BPR5ES
Maximum 2,950 ~ 3,100 rpm **
Governed
Speed
Valve Intake: 0.10 ± 0.02 mm
clearance Exhaust: 0.10 ± 0.02 mm
(cold)
* Actual amount will vary due to residual oil in the engine. Always
use the dipstick to confirm the actual level (page 6).
** Do not over-speed the engine or alter governor settings.
Excessive speed is dangerous and shortens mower life.
Variable speed
0 to 1.60 ~ 1.85 m/s
49 ~ 59 N•m
Gap: 0.7 ~ 0.8 mm
page 7
page 12
page 13
page 14
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