18
Problems That May Affect Emissions
If you are aware of any of the following symptoms, have your engine
inspected and repaired by your authorized Honda servicing dealer.
• Hard starting or stalling after starting
• Rough idle
• Misfiring or backfiring under load
• Afterburning (backfiring)
• Black exhaust smoke or high fuel consumption
Replacement Parts
The emission control systems on your new Honda engine were
designed, built, and certified to conform with EPA, California, and
Canadian emission regulations. We recommend the use of Honda
Genuine parts whenever you have maintenance done. These
original-design replacement parts are manufactured to the same
standards as the original parts, so you can be confident of their
performance. The use of replacement parts that are not of the original
design and quality may impair the effectiveness of your emission
control system.
A manufacturer of an aftermarket part assumes the responsibility the
part will not adversely affect emission performance. The manufacturer
or rebuilder of the part must certify that use of the part will not result in
a failure of the engine to comply with emission regulations.
Maintenance
Follow the
MAINTENANCE SCHEDULE
. Remember that
this schedule is based on the assumption that your machine will be
used for its designed purpose. Sustained high-load operation will
require more frequent service.
AIR INDEX
An Air Index Information hang tag/label is applied to engines certified
to an emission durability time period in accordance with the
requirements of the California Air Resources Board.
The bar graph is intended to provide you, our customer, the ability to
compare the emissions performance of available engines. The lower
the Air Index, the less pollution.
The durability description is intended to provide you with information
relating to the engine’s emission durability period. The descriptive
term indicates the useful life period for the engine’s emission control
system. See your
EMISSION CONTROL SYSTEM WARRANTY
) for additional information
.
.
SPECIFICATIONS
Frame
Engine Design and Performance
Maintenance
Tune-up
Descriptive Term
Applicable to Emission
Durability Period
Moderate
50 hours (0–80 cc inclusive)
125 hours (greater than 80 cc)
Intermediate
125 hours (0–80 cc inclusive)
250 hours (greater than 80 cc)
Extended
300 hours (0–80 cc inclusive)
500 hours (greater than 80 cc)
1000 hours (225 cc and greater)
Model
HS520
Description code
SZBG
Length x Width x Height
49.5 x 20.7 x 40.4 in
(1258 x 527 x 1026 mm)
Dry weight
HS520A: 82 lbs (37 kg)
HS520AS: 88 lbs (40 kg)
Snow clearance (h x w)
12 x 20 inches (306 x 500 mm)
Max. snowthrowing distance
(varies with conditions and
snow)
Front: 26 feet (8 m)
Left/right: 16 feet (5 m)
Continuous operating time*
1.6 hours
Clearing capacity
55 tons/hour (50 metric tons/hour)
Noise level
84.4 dB(A)
* Operating time will vary depending on the depth and weight of the
snow.
Model
GC160
Displacement
9.8 cubic inches (161 cc)
Bore x stroke
2.5 x 2.0 inches (64 x 50 mm)
Starting method
HS520: recoil (pull start)
HS520AS: recoil or AC electric
Ignition system
Transistorized magneto
Oil capacity
0.63 US quart (20.3 fl oz, 0.6 liter)
Fuel tank capacity
0.3 US gallon (1.3 liters)
Spark plug
NGK: BPR5ES or
DENSO: W16EPR-U
Fuel
Unleaded gasoline
with an octane rating
of 86 or higher
Engine oil
SAE 5W-30
API SJ or later
Spark plug gap
0.028 ~ 0.031 in (0.70 ~ 0.80 mm)
Valve clearance
intake: 0.15 mm
exhaust: 0.20 mm
Other specifications
No other adjustments needed
Summary of Contents for Harmony HS520A
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