This intriguing subject brought forth an incredible search of the internet. It turns out the ignition coil transforms voltage from a battery in order to create an electric spark in the spark plugs which leads to the ignition of fuel.
The condenser serves to enhance the spark by greatly increasing the voltage to the input of the ignition coil. It does this through a sudden electrical surge and a high frequency ringing effect, bringing the voltage as high as 300 volts for input to the coil immediately after the ignition points break.
At the end of the compression stroke. That's one of the jobs of the crank sensor.
The spark plug requires a very high voltage for the spark to leap the gap between the contacts and provide a source of ignition. The coil does this by changing the voltage from the battery/alternator from a very low voltage to a very high one through a process called induction.
Starter draw is typically under 100amps. The battery has to be in good enough shape to take the 150 amp (fuel injection, pump, and ignition) draw plus not allow a voltage drop below 10 volts. Coils don't really fire well at lower voltages if at all.
The starter relay is out. Or the ignition module. Or the ignition switch is out. And its the odds in that order. Greatest to least.
I have a JD LT 155 C. I have replaced the solenoid and the mower still want start. There is 12 volts between the battery and the solenoid. When I test the voltage between the solenoid and the starter, the reading is 5 to 6 volts. Why is there a drop in the voltage to the starter?
You should locate and test the solenoid. Most have three connections. There is a large cable from the battery to the solenoid, from the solenoid to the starter and from the start switch to the solenoid. The power terminals to the battery and the starter are large and have large cables. The starter switch connection is much smaller. Turning the key to 'start' provides a low current voltage to the solenoid causing the solenoid relay to close and power from the battery cable to connect through to the starter. If that voltage is present then the solenoid or the wiring between the solenoid and battery or solenoid and starter is suspect. If that voltage is missing then the starter switch or solenoid feed line may have failed.
The main parts are the starter motor, starter drive gear and starter solenoid. Look up '94 Ford Escort LX in the RockAuto.com parts catalog and look under Electrical to see photos of the starter and its parts. Make sure the voltage from the ignition key wire to the solenoid is > 3 volts before replacing the starter. If a low voltage is coming into the solenoid then a new starter and solenoid will not fix the starting problem and the new solenoid could be damaged. Look up '94 Ford Escort LX in the autosparepartsusa.com i am sure you will get there
very very simple wiring---it goes from the ignition switch to the fuse box--then directly to the voltage regulater and then straight to the starter solenoid
Overheating. Answer- The starter either has a bad solenoid or the ignition switch is not opening the connection when turned off. The only way to check that would be to disconnect the starter, and check for voltage when the key is turn to start and then turned off. If voltage is present all of the time, then check the same thing at the solenoid.
check your starter, it could either not but getting voltage at all (which would be the starter solenoid) or more likely it is just old or has failed and needs to be replaced
Essentially, a CDI box controls a motorcycle's ignition system by starting the ignition and combustion process. A pulse of voltage from the motorcycle battery passes through the CDI box to fire up the spark plug. In addition to the CDI box, other components of modern ignition systems include: Battery.
fault starter/cable, faulty solenoid, faulty wiring harness, or undercharged battery.
Control Module depending on type controls the engine functions, transmission, ignition, etc. (test does not specify "Ignition Control Module")Starter solenoid would be the most likely choice because on older vehicles with points ignition, the solenoid has a Resistor (Run) post for and an Ignition (Start) post, but now we don't need resistors, but it still has to do with ignition!Coil supplies voltage to the spark plugs = ignition again.Spark plug creates the gap for the spark that the fuel needs to ignite, ignite = ignition.
bad solenoid in the starter or insufficient voltage to the starter
Usually one of three reasons. Starter is staying energized from starter switch or starter solenoid is bad internally or bendix gear on the end of the starter is not retracting. Tests: "bump" the starter with a momentary pulse of the key. If it continues to crank after releasing the key it's electrical. If not then probably gear is stuck or damaged. Check gear at flywheel. Should slide in and out of engagement freely. If problem is electrical then locate starter engagement wire at solenoid. And when motor starts check for battery voltage at that wire when disconnected. If it has voltage then suspect switch. If not then check for voltage at solenoid terminal. If voltage then replace solenoid or starter if integral.