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Repair Topics / Waste
Spark Ignition System
Car Waste Spark Ignition System This
category contains featured questions as
examples. They relate to most vehicles.
Question:
My brother is doing a car mechanics course
and needs to find out what a Waste Spark is.
Answer: A waste spark is the spark that occurs 360�
from the “normal” spark that fires the fuel
mixture. Remember the “normal” spark
occurs every 720� (2 turns of the crank
shaft).
Repair Topics / Waste
Spark Ignition System
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