The ZMZ-4062 engine does not have the usual idle system, like in a carburetor.

K-151, K-151D carburetors are installed on engines of model 402 and 4021.

The K-151 carburetor (Fig. 1) consists of three main detachable parts connected through sealing gaskets with screws

The intermediate shaft drives the oil pump

In addition, camshafts are driven through it

Usually, oil seals are changed due to oil leakage from under the seals or when repairing the engine