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:

Ў¤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.

Ў¤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.

 

Ўщ 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.

 

Ўщ 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.

 

ЎЄ Parameters and the recommended settings can be adjusted.

Ў¤ Idling adjustment ЎЄ Engine speed 1400ЎА100rpm/min

Concentration of CO 0.5-1.2%

15.4 Catalyst conversion system

15.4.1 Construction :

15.4.2 Instructions:

1. The function of conversion catalyst is to convert the waste gas HC, CO, NO_X into H2O, CO2Ўў,N2 and other harmless gas before release.

2. Conversion catalyst contains platinum, rhodium and other rare metals, restricted unleaded petrol.

Ўщ Note that leaded petrol will make catalyst failure.

• General notes for inspection and maintenance of vehicles (exhaust pipes) filled with catalytic converters:

1> Vehicles filled with the conversion catalyst cannot be touched when the engine is running or turned off for only a short time because of the too high temperature.

2> Vehicles filled with the conversion catalyst cannot be close to combustibles.

3> Exhaust pipe contains carbon monoxide which is harmful to health, so do not run the engine in a confined space.

4> Vehicles filled with the conversion catalyst cannot use leaded petrol. (To prevent catalyst poisoning)

5> Engine cannot be launched by use of carts. If it must rely on carts to starting the engine, carts can also not be used until the temperature of the engine and the catalytic converter is lowered.

6> Do not use gear-up and way of shut-down in going downhill.

7> Do not drive the vehicle of bad ignition.

8> when in maintenance of engine ignition, do not disassemble the spark plug. Start the engine and use the method to check if there is any sparks. If necessary, however, a long time of spark plug removal is not allowed.

15.5 Solutions to Idle Exhaust Exceeding Specified Value

 

Perform regular inspection (Repair and maintenance plan)

 

 

Attention:

1. Make the measurement with idling testing procedure.

2. Adjust the engine idle speed within the provisions, and measure the idle speed CO/HC.

Inspection and Maintenance of EFI System