Ignition Timing: Testing and Inspection
INSPECTION1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CHECK IDLE SPEED
3. CONNECT TIMING LIGHT
Connect the tester probe of a timing light to the black-white service wire of the engine wire as shown in the illustration.
4. INSPECT IGNITION TIMING
a Using SST, connect terminals to TC and CG of the DLC3.
SST 09843-18040
HINT: After engine rpm is kept at 900 - 1,500 rpm for 5 seconds, check that it returns to idle speed.
b Using a timing light, check the ignition timing.
Ignition timing: 8 - 12° BTDC at idle
c Remove the SST from the DLC3.
5. FURTHER CHECK IGNITION TIMING
Ignition timing: 5 - 15° BTDC at idle
HINT: The timing mark moves in a range between 5° and 15°.
6. DISCONNECT TIMING LIGHT