With this device, gases that break into the crankcase are returned through the intake manifold and air filter. To return gases from the crankcase crankcase to the intake manifold, a valve is included in the device. The air required for ventilation is drawn through the carburetor air filter and discharged through a hose between the air filter and the cylinder head cover at the top of the cylinder head and from there into the crankcase. At full throttle, sufficient vacuum is created in the intake manifold to suck gases into the crankcase through the valve and hose in the opposite direction. To ensure normal functioning! ventilation after 20,000 km the following work should be carried out:
Start the engine at idle speed and disconnect the hose from the valve. If the valve is working properly, you will hear the sound of air escaping. When you place your finger on the hole, you can feel the difference.