Air index, Specifications – HONDA WMP20X User Manual
Page 15
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Problems That May Affect Emissions
If you are aware of any of the following symptoms, have your engine
inspected and repaired by your 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 emissions control systems on your new Honda engine were
designed, built, and certified to conform with EPA, California and
Canadian emissions regulations. We recommend the use of genuine
Honda 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 emissions
control system.
A manufacturer of an aftermarket part assumes the responsibility that
the part will not adversely affect emissions 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 emissions
regulations.
Maintenance
Follow the MAINTENANCE SCHEDULE on page 7. Remember this
schedule is based on the assumption that your machine will be used
for its designed purpose. Sustained high-load or high-temperature
operation, or use in unusually wet or dusty conditions, 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
(page 18) for additional information
.
SPECIFICATIONS
Dimensions and Weight
Engine Design and Performance
Pump
Maintenance
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
WMP20X
Description code
WAAA
Length x Width x Height
20.5 x 15.7 x 17.7 in
(520 x 400 x 450 mm)
Dry weight
56.2 lbs (25.5 kg)
Model
GX160K1
Engine type
4-stroke, overhead-valve,
single cylinder
Displacement
[bore x stroke]
9.9 cu in (163 cc)
[2.7 x 1.8 in (68 x 45 mm)]
Oil capacity
0.6 qt (0.6
)
Fuel capacity
0.82 US gal (3.1
)
Cooling system
Forced air
Ignition system
Transistorized magneto
PTO shaft direction
Counterclockwise
Pump type
Suction
Suction port diameter
2 in (50.8 mm)
Discharge port diameter
Rated rpm (max load)
3500 rpm
Total head (max)
105 ft (32 m)
Suction head (max)
26 ft (8 m)
Discharge capacity (max)
220 gpm (833
l/min)
Self-priming time
65 sec at 16.4 ft (5 m)
Pressure (max)
45 psi (310 kPa)
Continuous running time*
2 hrs, 15 min
* Approximate time. Actual time will depend on pump load.
Fuel
Unleaded gasoline
with a pump octane
rating of 86 or higher
Engine oil
SAE 10W-30
API SJ, or later
Spark plug type
NGK– BPR6ES
Maximum governed
speed
3,700 ~ 4,000 rpm
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POM50594-G_WMP20X.fm Page 15 Tuesday, March 25, 2008 2:34 PM