
The air filter (Fig. 1) is a dry type with a replaceable filter element made of synthetic non-woven material, installed on the engine on the right side in front of the carburetor and connected to the latter using a rubber coupling, secured to the carburetor with a wire clamp

After disassembling, thoroughly rinse all gearbox parts in kerosene, blow with compressed air and inspect

Adjust the bearings carefully.
If the bearings are loosely tightened during movement, impacts occur that destroy the bearings.
The durability of a repaired engine largely depends on its running-in on a stand and the operating mode of the car during the first 1000 km