What best describes a low-tension ignition system?

• A. It uses a magneto with a brush-type distributor and a coil with no secondary wiring; low voltage is boosted by a transformer on the cylinder head; one transformer per spark plug.
• B. A modern coil-on-plug arrangement.
• C. A battery-powered distributor.
• D. A traditional magneto with high-tension ignition leads.

Answer: (A)

In a low-tension ignition system, the spark voltage is generated close to the plug rather than in a single high‑voltage coil with long plug wires. A magneto provides the initial low-voltage pulses, and a brush-type distributor routes the pulse to a small transformer located near each spark plug. The transformer near the plug multiplies the voltage locally, so you have one transformer per plug and no long secondary wiring carrying high voltage. This setup reduces exposed high-voltage wiring and keeps timing control centralized by the distributor.

That’s why the description fits a low-tension system: magneto with a distributor, a coil with no secondary wiring, voltage boosted by a transformer at the cylinder head, and one transformer per spark plug.