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V. Exhaust Control System
With the engine running carbon monoxide, nitrogen oxide and hydrocarbons are produced. Carbon monoxide is a toxic gas
and in certain conditions, nitrogen oxide and hydrocarbon will react chemically with each other to make smoke, so proper
maintenance to control these dangers is very important.
To keep the exhaust of your engine within the standard exhaust emission, pay attention to the following:
1. Maintenance
Maintain the engine periodically in accordance with the maintenance schedule in the “Maintenance” section. The
maintenance schedule is based on normal use in normal conditions. If using under heavy load, dusty or wet circumstances or
in high temperature, service of the engine should be done more often.
2. Replacing Parts
To ensure the best quality and reliability, use only genuine DR Power replacement parts.
3. Tampering and Altering
Tampering with or altering the emissions control system may increase emissions beyond the legal limit. Do not remove or
alter and part of the intake, fuel, or exhaust systems. Do not alter or remove the governor linkage or speed adjusting
mechanism. Doing so will cause the engine to operate outside of its design parameters and will result in engine damage.
2. Problems affecting exhaust emissions
Difficult starting or difficult stopping.
Unstable idling speed.
Exhausting of black smoke or consuming too much fuel.
Poor ignition, sparks, or backfires.
If you are experiencing any of above problems, contact DR Power Equipment for help.
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