Warm up the engine up to the working temperature. Connect a stroboscope according to the instruction. Rasstykuyte socket of the sensor of provision of a butterfly valve. Launch the engine and leave it to idle. Check an ignition advancing corner, directing a lamp beam to the tags put on a pulley of a bent shaft (fig. 2.96)
. If necessary weaken fastening of the distributor of ignition and, turning the distributor, establish an ignition advancing corner according to the recommended value. Delay fastening of the distributor of ignition. Again check a corner of an advancing of ignition and disconnect a stroboscope. Join the socket of the sensor of provision of a butterfly valve.