2.2.4.2. Speed of idling and toxicity of exhausts
The tachometer of usual type (the sensor of frequency of rotation of a bent shaft) which works at impulses from system of ignition cannot be established on the diesel engine. If you consider that you cannot adjust the frequency of rotation of a bent shaft aurally, then you need to get a tachometer or to address experts.
Check
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Check of system of production of the fulfilled gases
For check of toxicity of exhaust gases it is necessary to use the special equipment therefore it is better to entrust performance of this operation to experts. If works regularly, this check does not need to be carried out.