1. Warm the engine up to operating temperature.
2. Choke off.
3. Locate the idle adjusting screw. It is located on the left side of the carburetors, just below the air filter.
4. Turn the idle adjusting screw clockwise to increase the idle speed, and counterclockwise to decrease the idle speed.
5. Adjust the idle speed to the desired setting. The recommended idle speed for a Honda CB650 is 1,100 RPM.
6. Make any necessary adjustments to the air/fuel mixture screw to ensure that the engine is running smoothly.
Here are a few additional tips for adjusting the idle on a 1982 Honda CB650:
- If the engine is cold, it may be necessary to turn the choke on slightly to increase the idle speed.
- If the engine is running too rich, the idle speed may be too low.
- If the engine is running too lean, the idle speed may be too high.
- It is important to adjust the idle speed when the engine is at operating temperature, as the engine speed can change as the engine heats up or cools down.