
Usually, the throttle cable adjustment is adjusted when changing the throttle cable, or when repairing the engine

The ZMZ-406 engine is equipped with a microprocessor ignition system, which consists of a control unit for fuel injection and ignition systems, two ignition coils of types 30.3705 or 301.3705, spark plugs, high-voltage and low-voltage wires

Clean the piston heads and grooves for piston rings from carbon deposits
Pistons in the cylinders of the block must be installed group by group, in accordance with the table

Setting the ignition timing of a GAZ-2705 with a 402 engine
The ZMZ-402 engine is equipped with an ignition distributor sensor (1908.3706) - non-contact, with a control pulse sensor (generator) and built-in vacuum and centrifugal ignition timing regulators