Normal Idle
Be sure ignition system is in good operating condition and that adjustments are within specifications. Make sure that warm air intake lever is on "summer" position (if equipped) and connect tachometer. Run engine until it reaches normal operating temperature.
NOTE:
Particular care must be taken to insure that this adjustment is performed with precision, because level of exhaust emissions depends largely upon its accuracy.
- Adjust air adjustment screw until 700 RPM is obtained (825 RPM on R16 with auto, trans, in "Park"). Adjust mixture screw to obtain maximum idle speed. Continue above adjustments until maximum idle speed obtainable with mixture screw is 25 RPM over specified idle speed.
- Lean out mixture by turning mixture screw clockwise to lower idle speed by 25 RPM.NOTE: On 1970-72 models check that CO is to following specifications:
| Model | Idle CO% |
|---|---|
| R10 Manual Transmission | 2±.5 |
| R10 Automatic Transmission | 2.5±.5 |
| R16 Manual Transmission | 2±.5 |
| R16 Automatic Transmission | 2.5±.5 |