In a nonelectric small-engine ignition system, which of the following ignition components is energized by the?

Question

A The breaker points
B The primary winding of the ignition coil
C The spark plug
D The secondary winding of the ignition coil

Answer 1

By non-electric, I assume you mean a magneto ignition system. There are a number of different varieties of this type of ignition system, but you have already identified the major components. The only one that you have missed is the breaker points capacitor.

As the motor turns, the points are closed and a current is generated by the magneto that charges the primary winding of the coil. As the piston approaches 18 - 20 degrees before TDC (top dead center of the compression stroke) the points open causing the primary coil charge to collapse into the secondary winding of the coil, creating 15,000 - 25,000 volts which then arcs across the spark plug.

The timing of the points opening and the gap when they are fully open is critical to the engine ignition timing. A crude way of setting the timing is to remove the spark plug and insert a stiff wire or a thin screwdriver into the plug hole so that you can feel the top of the piston as it's rising. (On a 4 -stroke engine, make sure that you are on the compression stroke with both valves closed and not on the exhaust stroke) Set the piston to approximately 3/8" BTDC (before top dead center) Now loosen the magneto clamp and insert a cigarette paper (or other thin paper) between the points. When the points are closed you will feel resistance against the paper, but as soon as the points begin to open it will release. Adjust the magneto by rotating it so that the points are just opening with the piston 3/8" BTDC. Tighten the magneto back down then keep tuning the engine until the points are fully open. Adjust the points gap to about 18 - 20 thousands of an inch (approximately a tight fit on a hacksaw blade.)

Your engine should now run fine, follow the manufacturers instructions for exact timing.

Note that the capacitor connected between the points is an important part of the circuit, if it is shorted or open the engine will not run correctly or at all. Replace it if in doubt.

Answer 2

B.the secondary winding is connected to the spark plug wire The transformer in an auto ignition system is used to generate high voltage (several Kilo volts) for spark plug from car battery (mostly 12 V).

Answer 3

A, B, C and D all initialize the power stroke (combustion) on a four-stroke engine--no matter the number of cylinders, engine displacement, distributor set-up or firing order. Though the order is more like B, A, D, C.

Answer 4

flywheel by the charge coil makes electricity that is stored in a capacitor. points operate to release it to the coil. trigger mechanism tells the coil when to release it to the plug. and that's how the world goes round.

Answer 5

Non-electric?
small engine system?
no,the question is wrong and the answer IS NOT the breaker point!!!!
seems to me You don't know what You are asking.