Emission Control System Information; Specifications; Tuneup Specifications - Honda GXR120 Manual Del Propietário

EMISSION CONTROL SYSTEM INFORMATION

Source of Emissions
The combustion process produces carbon monoxide, oxides of
nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of
nitrogen is very important because, under certain conditions, they
react to form photochemical smog when subjected to sunlight.
Carbon monoxide does not react in the same way, but it is toxic.
Honda utilizes appropriate air/fuel ratios and other emissions
control systems to reduce the emissions of carbon monoxide,
oxides of nitrogen, and hydrocarbons.
Additionally, Honda fuel systems utilize components and control
technologies to reduce evaporative emissions.
The U.S., California Clean Air Acts, and Canadian Environment
Protection Act
U.S. EPA, California and Canadian regulations require all
manufacturers to furnish written instructions describing the
operation and maintenance of emission control systems.
The following instructions and procedures must be followed in
order to keep the emissions from your Honda engine within the
emission standards.
Tampering and Altering
Tampering is a violation of Federal and California law.
Tampering with or altering the emission control system may
increase emissions beyond the legal limit. Among those acts that
constitute tampering are:
• Removal or alteration of any part of the intake, fuel, or exhaust
systems.
• Altering or defeating the governor linkage or speed-adjusting
mechanism to cause the engine to operate outside its design
parameters.
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 emission control systems on your new Honda engine were
designed, built, and certified to conform with U.S. EPA and
Canadian emission 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 emission control
system.
A manufacturer of an aftermarket part assumes the responsibility
that 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 on page 6. Remember that 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.

SPECIFICATIONS

KRGA-type (basic type)
Length×Width×Height
Dry mass [weight]
Engine type
Displacement
[Bore×Stroke]
Net power
(in accordance with SAE J1349*)
Max. Net torque
(in accordance with SAE J1349*)
Engine oil capacity
1
*
Cooling system
Ignition system
PTO shaft rotation
*
1: When mount for rammer angle is 15°.
*
The power rating of the engine indicated in this document is the
net power output tested on a production engine for the engine
model and measured in accordance with SAE J1349 at 3,600
rpm (Net Power) and at 2,500 rpm (Max. Net Torque). Mass
production engines may vary from this value.
Actual power output for the engine installed in the final machine
will vary depending on numerous factors, including the operating
speed of the engine in application, environmental conditions,
maintenance, and other variables.

TUNEUP SPECIFICATIONS

ITEM
Spark plug gap 0.6–0.7 mm
(0.024–0.028 in)
Idle speed 1,850±150 rpm
Valve clearance IN: 0.15±0.04 mm
(cold) EX: 0.20±0.04 mm
Other
specifications
ENGLISH
259×294×290 mm
(10.2×11.6×11.4 in)
10.4 kg (22.9 lbs)
4-stroke, overhead camshaft,
single cylinder
3
121 cm (7.38 cu-in)
[60.0×43.0 mm (2.4×1.7 in)]
2.7 kW (3.7 PS, 3.6 HP) at 3,600 rpm
7.5 N∙m (0.76 kgf∙m, 5.5 lbf∙ft)
at 2,500 rpm
0.28 L (0.30 US qt, 0.25 lmp qt)
Forced air
Transistor magneto
Counterclockwise
SPECIFICATION MAINTENANCE
Refer to page 9
Refer to shop
manual
See your dealer
No other adjustments needed.
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