Choke Cap Resistance
- Heat choke with choke tester for 3-5 minutes. Disconnect electrical connector from choke cap terminal. Connect ohmmeter between choke cap terminal and choke cap ground.
- Ensure metal-to-metal contact, not metal oxide-to-metal contact. Ohmmeter reading should be under 30 ohms; but more than 0 ohms. If not to specifications, repeat test. If specifications are not met after second test, replace choke cap.
- Replace air cleaner and reconnect vacuum lines. Choke cap should be quite warm. Reconnect ohmmeter as described in step 1).
- On all models, use choke tester and cool cap by directing cold air towards oval insulator (not case) around cap terminal. Ohmmeter reading should gradually vary and then register sudden increase. Stop cooling.
- Sudden increase should occur within 10 minutes after cooling began (choke tester used at maximum capacity and held close to cap). If sudden increase does not occur within 10 minutes, replace choke cap. If change does occur, warm oval insulator with choke tester.
- Ohmmeter reading should again vary and then register sudden decrease. Stop warming cap. Sudden decrease should occur within 10 minutes after warming began (choke tester used at maximum capacity and held close to cap).
- If sudden decrease does not occur within 10 minutes, replace choke cap. If change occurs, choke cap is operating properly.