| 1. To warm up the engine to normal working temperature. |
| 2. To connect the analyzer of exhaust gases and a tachometre. |
| 3. To keep in a current about 30 seconds number of turns of 3000 rpm, and then to release an accelerator pedal (or throttle заслонку in the carburettor). |
4. To wait before installation of indications of the analyzer and to read indications of concentration WITH in exhaust gases idling the engine. |
5. In case of need to adjust number of turns of the engine by means of the persistent screw throttle заслонки, the employee for adjustment of number of turns of idling. |
| 6. If concentration WITH small by means of thin screw-driver to remove a casing of the screw of adjustment of structure of a mix and to adjust accordingly position of this screw. |
| 5. To establish number of turns of the engine of 3000 rpm and in approximately 30 seconds to pass (as well as in the previous case) on idling and to check up number of turns of the engine and the maintenance WITH. |
| 8. To establish a casing of the screw of adjustment of structure of a mix. |