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· Relevant emission specifications:
Emission Specifications CO HC+NO
X
Emission standard ≤1.0g/km ≤1.2g/km
※ The latest version shall prevail when emission standard is updated.
· The enginecycle that does not perform regular inspection in local dealer or service center of the company
may be prohibited to use. The company will not be responsible for that. Please have your enginecycle
inspected whenever necessary to keep it in best condition.
Note: ① You shall clean more frequently the air cleaner to extend service life of the engine when your
enginecycle is often used on sand-gravel roads or in severely polluted environment.
② More frequent services may be required when the enginecycle is often driven at high speed or
travels a long distance.
Pay attention to the followings to ensure standard emission
1> Please use only 92 or 95 unleaded gasoline.
2> Please use only specified type of engine oil.
3> Please service your enginecycle according to your periodical maintenance table.
4> Emission control system is forbidden to be adjusted or replaced (including spark plug use, idle speed
adjustment, ignition timing, carburetor adjustment, etc.).
5> Attentions:
·Improper ignition system, charging system or fuel system will have great effect on muffler, so please go to
your local dealers or service center of the company for inspection, adjustment or maintenance when you
encounter it.
·Please use only 92 or 95 unleaded gasoline, or the muffler device (two-stroke system) may be injured.
6> Emission control system of the enginecycle meets national standard. If you have to replace any component
of the system, please use the spare parts made by Qianjiang Enginecycle Co., Ltd. and ask your local dealer or
service center to replace it for you.
15.3 Emission Control System Mechanical Functions
General introduction
The emission control system is based on two-stroke single cylinder engine and throttle valve. It uses air intake
device and keep excellent exhaust gas level; Activated carbon canister is used for vaporized waste gas process.
※ Engine improved
Improvement in the central spark plug with compression ratio, combustor, duration of ignition and
ventilation system, is for a commonly-accepted intake and exhaust efficient, which is also for
improvement in combustion efficiency.
※ Air intake device
Guide air into exhaust pipe and CO and HC of incomplete combustion will be reacted into harmless gas.
Classification Equipment Constituted Part Desired Function
Combustion
system
Combustion
chamber
Hemispherical
combustion
chamber
Have spark plug hemispherical combustion chamber
placed in middle to seek the safety of burning.
Exhaust
system
Catalyst
device
Catalyst
converter
Have canned oxidation catalyst put in central exhaust
pipe to oxide CO, HC and NOX.
— Parameters and the recommended settings can be adjusted.
· Idling adjustment — Engine speed 1400±100rpm/min
Concentration of CO 0.5-1.2%
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