( Automotive engineering : Vehicle components , Engine, transmission, and exhaust )
ignition1, ignition2, ignition3, timing
You can adjust the ignition timing to suit a fuel of a lower octane rating.
The ignition timing ensures that the spark plug ignites the fuel at the optimum moment.
If the ignition timing is set to 5 degrees before top dead center, the spark plug fires when the crankshaft
is 5 degrees away from top dead center.
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