Ignition Timing: Specifications

Ignition Timing
Check that basic ignition timing is within the standard value.
Standard value 5° BTDC ± 3°
Check that the actual ignition timing is at the standard value.
Standard value Approximately 10° BTDC

NOTE: Ignition timing fluctuates about ± 7° Before Top Dead Center, even under normal operating condition.

NOTE: It is automatically further advanced by about 5° to 10° Before Top Dead Center at higher altitudes.