Before adjusting, make sure that (see photo):
- the air supply regulation cone of the heating sensor protrudes at least 9-10 mm (dimension "A");
- distance between the mixture enrichment lever and the mounting nut (size fuck) equals 4 mm;
- rod 1 touches stop 2.
Using the mixture quantity adjusting screw 3, set the crankshaft speed within 900±50 rpm. Adjust the carbon monoxide (CO) content in the exhaust gases using the mixture quality (composition) adjusting screw 4. If necessary, readjust the engine idle speed using screw 3.
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