Problems with the automatic trigger at VAZ-2108 with Solex Carburettor

Often the owners of the VAZ-2108/09/99 with the Soyuz carburettor equipped with automatic warm-up device face a sharp drop in turnover after the cold start from 1500 to 300-500. At a further warming up, the turnover can grow again, then fall again and so on. In this case, it is necessary to check the tightness of the launch device, the mobility and the opening clearance of the carburettor manufacturer (DAAZ).