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16
EXHAUST CONTROL SYSTEM
With the engine running, carbon monoxide, oxide of nitrogen and hydrocarbon will produce, and in certain
conditions, oxide of nitrogen and hydrocarbon will react chemically each other to make smoke while carbon
monoxide is toxic, so exhaust control of them is very important. The company decreases the exhaust emissions by
introducing poor-fuel carburetors and other devices into the engine to solve the problem.
To keep the exhaust of your engine within the standard exhaust emission values, pay attention to the following:
I. MAINTENANCE
Maintain the engine periodically in accordance with the Maintenance Schedule in the manual. The maintenance
schedule is made out on the base of normal use in normal conditions, if using under heavy load, dusty or wet
circumstances or in high temperature, more frequents maintenance will be necessary.
II. REPLACEMENT OF PARTS
We recommend that you should choose such parts, which are manufactured by our Co. or equivalent to these in
quality as replacement ones. Replacement without so high quality may impair the exhaust control system in
effectiveness.
III. MODIFYING
Modifying the exhaust control system may make actual exhaust emissions exceeding statutory limit values. Illegal
modification is as follows:
1.Dismantle or modify any part of air inlet or outlet system.
2.Modify or take off speed-adjusting connection device or speed adjustment device to result in the engine’s running
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