Cold Dr15 - Basic Ignition Timing
- Connect tachometer and power timing light to engine. Disconnect and plug vacuum hose at distributor. Warm engine to normal operating temperature. Check that idle speed is 700-900 RPM. Adjust if necessary.
- Ignition timing should be within 2° of specification shown on emission label. If so, proceed to Cold DR16 below. If timing is not within proper range, adjust as necessary.