Ignition Timing
1. Check the condition of the engine (spark plugs, leaks in hoses, etc.).
2. Turn all electrical loads OFF.
3. Warm up the engine and run it for three minutes at 2,500-3,000 rpm in neutral or park.
Fig. 21 Test Connector:
4. Connect a tachometer and a timing light to the engine.
5. Ground the test connector (green: 1-pin) with a jumper wire.
6. Check that the idle speed is within specification.
Idle speed: 750 ± 25 rpm in neutral or park
7. If the idle speed is not within specification, adjust it by turning the air adjusting screw.
Fig. 24 Timing Mark:
8. Check that the timing mark (YELLOW) on the crankshaft pulley and the mark on the timing belt cover are aligned.
Ignition timing: 6 ± 1°
(Vacuum hoses disconnected and plugged)
Fig. 25 Distributor Adjustment:
9. If the mark is not aligned, loosen the distributor lock bolt, and turn the distributor housing to make the adjustment.
10. After adjusting the ignition timing, disconnect the jumper wire from the test connector, and reconnect the vacuum hoses.