what do the pulser and lighning coils do on the stator?

WaveDemon

WaveDemon

Not Dead - Notable Member
Location
Hell, Florida
WAB said:
What the heck are you up to anyway? :Banane01:
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for now, research. in the end home made programable ignition for about the price of an enhancer (maybe a little more). I'll share what I find, I'm not selling anything.

It may go nowhere but the parts are out there waiting to be adapted to what we do.
 
S

sflsurfrider

Ollie Rastabean said:
Coil operation shares some similarities with how capacitors work.
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similar in that they take a low voltage and convert into a higher voltage and the fact that they work together to deliver the spark, but a coil doesnt "store" any power. it gets its power from the stored charge from the capacitor within the cdi.
 
Ollie Rastabean

Ollie Rastabean

TWIST GRAPHIX
Location
St. Pete, FL/Freeport Bahamas
sflsurfrider said:
similar in that they take a low voltage and convert into a higher voltage and the fact that they work together to deliver the spark, but a coil doesnt "store" any power. it gets its power from the stored charge from the capacitor within the cdi.
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All I am saying is that an ignition coil shares some simimlarities with a capacitor as they will "charge" when connected to voltage and will discharge once that connection is broken. They store potential when connected to power. Admittedly you cannot charge a coil up like a capacitor and then disconnect power and have it store that energy.

-o
 
S

sflsurfrider

Ollie Rastabean said:
All I am saying is that an ignition coil shares some simimlarities with a capacitor as they will "charge" when connected to voltage and will discharge once that connection is broken. They store potential when connected to power. Admittedly you cannot charge a coil up like a capacitor and then disconnect power and have it store that energy.

-o
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a coil doesnt "store" anything. when theres a pulse of electricity on the primary side, it immediately creates the spark through the secondary side. i understand what youre saying, but the term "store" makes it sounds as if it has capacitor qualities, which it does not. the input volatge and output voltage are simultaneous no potential "stored".
 
Ollie Rastabean

Ollie Rastabean

TWIST GRAPHIX
Location
St. Pete, FL/Freeport Bahamas
sflsurfrider said:
a coil doesnt "store" anything. when theres a pulse of electricity on the primary side, it immediately creates the spark through the secondary side. i understand what youre saying, but the term "store" makes it sounds as if it has capacitor qualities, which it does not. the input volatge and output voltage are simultaneous no potential "stored".
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I dont understand how us bickering about semantics brings anything to this discussion.

And I quote:

"An ignition coil actually does most of its work as an inductor. When the ignition coil is connected to the battery, the inductor is 'charged' with current. It takes a few miliseconds for the current to build up the magnitic field - this on account of reverse voltage caused by the increase in magnetic field. During this short charging period, maybe a thousand volts are produced at the high voltage terminal, not enough to actually cause a spark."

BTW- I aint some backwoods moron. I have a Mechanical Engineering degree. Half way to an EE degree and 14 years of wrenching under my belt.

I AM DONE
 
keefer

keefer

T1
Location
Tennessee
That is why coils can be referred to as inductors, hence their value is measured in henrys. They dont really charge up but rather when you apply a voltage to a coil and then release that potential, the coil will relax and induce a higher voltage spike upon the collapse of the field. It stores energy in a way but it really does not charge up like a capacitor. When you discharge the capacitor from the cdi it pulses the coil primary winding with a relatively low voltage. This low voltage across the low number of windings is becomes a high voltage pulse on the secondary side of the coil 20000 volts or so because the coil is just acting as a transformer. Viola you got spark.

You can get a high voltage spike from single coil if you apply DC voltage and then release it. I have seen this applied in a little fake book with foil borders and a AA battery wired in series with a high winding number coil. When the book is closed the circuit is complete. When you open the book the circuit is broken and it shocks the crap out of you and you drop the book.:sneaky: Usually there will be a picture of a near naked lady or something on the cover to peak your interest and make you open it up to check it out. Who said science could not be fun.:clown:
 
S

sflsurfrider

Ollie Rastabean said:
I dont understand how us bickering about semantics brings anything to this discussion.

And I quote:

"An ignition coil actually does most of its work as an inductor. When the ignition coil is connected to the battery, the inductor is 'charged' with current. It takes a few miliseconds for the current to build up the magnitic field - this on account of reverse voltage caused by the increase in magnetic field. During this short charging period, maybe a thousand volts are produced at the high voltage terminal, not enough to actually cause a spark."

BTW- I aint some backwoods moron. I have a Mechanical Engineering degree. Half way to an EE degree and 14 years of wrenching under my belt.

I AM DONE
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200.jpg
:rolleyes:

it was a discussion.
 
WaveDemon

WaveDemon

Not Dead - Notable Member
Location
Hell, Florida
thanks for clearing up the coil situation up for me guys. now, someone tell me how the start/stop/lanyard circuit works again? and which coil (lightning or charging) sends power to the cdi?
 
keefer

keefer

T1
Location
Tennessee
The Yamaha manual says that the charging coil supplies power to the CDI for its operation and that the lighting coil is for charging the battery. The start switch simply operates the solenoid and cranks the engine. Once started the stator voltages operate the CDI and charge the battery. The stop / lanyard switch defeat the CDI when you close the stop or lanyard. The lanyard is a multiple switch which also defeats the start switch when open. The diagram is in the Yami manual and is pretty simple. I dont have a scanner or else I would post it up. Does someone have an online version? Seems like I heard Wasteland or somebody talking about it recently.
 
Matt_E

Matt_E

steals hub caps from cars
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Location
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Ollie Rastabean said:
All I am saying is that an ignition coil shares some simimlarities with a capacitor as they will "charge" when connected to voltage and will discharge once that connection is broken. They store potential when connected to power. Admittedly you cannot charge a coil up like a capacitor and then disconnect power and have it store that energy.

-o
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No...not really. A cap will charge up, depending on the frequency of the input.
A coil doesn't "store" anything. Any input above DC will make an EM field around the coil.

When a coil is "disconnected", the sudden change in it's own EM field induces a counter current. The cap doesn't do that....yes, it will discharge, but how fast and how much depends on it's size.
There are also some important differences in voltage and current differential behavior.

Demon, I would stay away from the stock pulser coil. Why you ask? Because then you'd be forced to use the stock stator and stock flywheel.
If you used a TL flywheel, pickup plate, and pickups, you would have a much better ignition (i.e., TL)
Those components really aren't any more expensive in the used market than a stock system.

Unless, of course, you wanted to use the stock system. :sneaky: :banghead:
 
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