Electrical Advance System

1. Disconnect distributor vacuum hose from distributor vacuum controller and plug hose.
2. Ensure that harness connectors are properly connected.
3. Install timing light.
4. Start engine when cold and check timing.
5. Stop engine and disconnect lead wire between terminals No. 24 and No. 30 of throttle valve switch harness connector.
6. Start engine and recheck timing. Timing should read the same as in step 4. Warm engine up. Timing should retard as engine warms up.
8. Stop engine and connect throttle valve switch harness connector. Timing should advance.
9. If timing does not respond as described, test throttle valve switch and water temperature switch.