Small Engine Ignition System Questions
and Answers Latest Version Already
Passed
What is the main purpose of the ignition system in a small engine?
✔✔ To ignite the air-fuel mixture in the combustion chamber.
What part generates the electrical spark in a small engine?
✔✔ The spark plug.
What component increases voltage to fire the spark plug?
✔✔ The ignition coil.
What type of ignition system is commonly used in modern small engines?
✔✔ Solid-state ignition system.
What does the flywheel do in the ignition system?
✔✔ It contains magnets that generate electricity as it spins past the ignition coil.
1
,Why is timing important in the ignition system?
✔✔ It ensures the spark occurs at the right moment in the engine cycle.
What happens if the ignition timing is off?
✔✔ The engine may misfire or lose power.
What part controls when the ignition coil sends a voltage to the spark plug?
✔✔ The ignition module.
Where is the spark plug located in the engine?
✔✔ In the cylinder head.
What tool is used to check for a spark in the ignition system?
✔✔ A spark tester.
Why might a spark plug not fire even if the engine turns over?
✔✔ The ignition coil may be faulty.
2
, What maintenance can improve ignition system performance?
✔✔ Cleaning or replacing the spark plug.
What does a gap gauge do for a spark plug?
✔✔ Measures and adjusts the spark plug electrode gap.
What happens if the spark plug gap is too wide?
✔✔ The spark may be weak or not occur at all.
What happens if the spark plug gap is too narrow?
✔✔ The spark may be too weak to ignite the mixture properly.
What can cause a spark plug to become fouled?
✔✔ Oil, carbon deposits, or incorrect fuel mixture.
How can a bad ignition switch affect engine operation?
✔✔ It may prevent the engine from starting.
3
and Answers Latest Version Already
Passed
What is the main purpose of the ignition system in a small engine?
✔✔ To ignite the air-fuel mixture in the combustion chamber.
What part generates the electrical spark in a small engine?
✔✔ The spark plug.
What component increases voltage to fire the spark plug?
✔✔ The ignition coil.
What type of ignition system is commonly used in modern small engines?
✔✔ Solid-state ignition system.
What does the flywheel do in the ignition system?
✔✔ It contains magnets that generate electricity as it spins past the ignition coil.
1
,Why is timing important in the ignition system?
✔✔ It ensures the spark occurs at the right moment in the engine cycle.
What happens if the ignition timing is off?
✔✔ The engine may misfire or lose power.
What part controls when the ignition coil sends a voltage to the spark plug?
✔✔ The ignition module.
Where is the spark plug located in the engine?
✔✔ In the cylinder head.
What tool is used to check for a spark in the ignition system?
✔✔ A spark tester.
Why might a spark plug not fire even if the engine turns over?
✔✔ The ignition coil may be faulty.
2
, What maintenance can improve ignition system performance?
✔✔ Cleaning or replacing the spark plug.
What does a gap gauge do for a spark plug?
✔✔ Measures and adjusts the spark plug electrode gap.
What happens if the spark plug gap is too wide?
✔✔ The spark may be weak or not occur at all.
What happens if the spark plug gap is too narrow?
✔✔ The spark may be too weak to ignite the mixture properly.
What can cause a spark plug to become fouled?
✔✔ Oil, carbon deposits, or incorrect fuel mixture.
How can a bad ignition switch affect engine operation?
✔✔ It may prevent the engine from starting.
3
