| 1. Check is carried out on the cold engine. Designate and disconnect hoses and uncover the air filter. |
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2. Заслонка is in the top part of the carburettor (it is specified by an arrow). Squeeze out to the full a pedal throttle заслонки – заслонка it should be closed completely. Start the engine – at start заслонка it should be slightly opened a little. |
| 3. In process of engine warming up заслонка it should be slightly opened a little. |
| 4. After some minutes заслонка should open completely. Press sharply a pedal throttle заслонки and be convinced that the cam of fast idling left gearing with the lever. |
| 5. At completely covered заслонке the engine should work on the raised turns of idling. In process of opening air заслонки throttle заслонка moves and deduces a cam from gearing with the lever, idling turns decrease. |
