Idle Speed & Mixture: Notes
NOTE:
The following adjustments must be performed with the air filter in good condition, ignition timing and valve clearance adjusted to specifications and engine at normal operating temperature.
- Disconnect charcoal canister-to-throttle housing hose at throttle housing, but do not plug port. Connect a tachometer to engine.
- Connect a CO meter to test points in exhaust manifold. Set idle speed by turning idle adjusting screw (below throttle switch). Read and record CO level. Disconnect oxygen sensor wire in right rear corner of engine compartment. CO reading should not change.
- If CO reading changes with sensor disconnected, level must be adjusted. Remove plug under left rear corner of air flow meter and adjust with short screwdriver.
- Check CO readings and adjust until values are within specifications and do not change when sensor is disconnected or connected. Remove test equipment, replace manifold plugs, and connect hose to throttle housing.