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5.1.23. Valve check of increase in turns of idling

On some models the valve of increase in turns of idling which is located sideways the carburetor is installed.

PERFORMANCE ORDER
1. Remove the air filter and a vacuum hose.
2. Close a valve exit, then include ignition, but do not start the engine. At the same time from the valve noise has to be heard. Otherwise replace the block.
3. After installation replace the air filter and a vacuum hose.