Which of the following is NOT one of the carburetor adjustments for chainsaws?

In a chainsaw, the carburetor is responsible for mixing air and fuel in the correct ratio for efficient combustion. There are specific adjustments typically made to optimize the performance of the carburetor, which include idle speed, high speed, and low speed.

Idle speed adjustment allows the engine to maintain an appropriate RPM when the chainsaw is not in use, preventing stalling while ensuring it’s ready for operation. The high-speed adjustment affects how the engine runs at full throttle, crucial for peak performance during heavy cutting. Similarly, the low-speed adjustment ensures proper performance at slower speeds, vital for more controlled cutting.

The term "power speed" is not a standard adjustment in chainsaw carburetors and thus is the correct response. Understanding these specific adjustments will enable operators to optimize their chainsaw performance and operation safety effectively.