Ignition Timing: Adjustments

1. Start the engine and warm it up until the water temperature indicator points to the middle of the gauge.
2. Operate the engine at 2000 rpm for 2 minutes under no load.
3. Idle engine and check timing.
Timing should be 15° ± 2° BTDC.
If not proceed to step 4.

Fig. 92 Throttle Sensor And Idle Switch:

4. Turn the engine off.
5. Disconnect the idle switch connector (located on the throttle chamber).

Fig. 86 Auxilary Air Control Valve Connector:

6. Disconnect the auxiliary air control valve connector (located on the idle air adjusting unit).

Fig. 90 Timing Marks:

7. Start the engine and warm it up until the water temperature indicator points to the middle of the gauge.
8. Adjust the ignition timing to 15° BTDC by turning the distributor after loosening the securing bolt.
9. Turn the engine off.
10. Reconnect the auxiliary air control valve and the idle switch connectors.