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how can you have no spark and lights work?


dadude

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Hey guys this has been puzzling me. How can a banshee with a bad stator light up lights on kick at night... but yet no spark from plugs.

 

Yes I ohm'ed the continuity between the red and green and got nothing not even a continuity beep via digital ohm meter.

 

Regardless how is this possible? I tested my new stator that came in used working red/green got continuity beep etc. So obviously something is fouled with my stator.

 

But how is this possible? If the red/green give no continuity beep(current stator on my bike). The stator/flywheel(spining) creates the kinetic into electric? So how come it can power them just enough to where I can see it at night. Yet no spark at all.

 

Like I said new used working stator i just got red/green got contuity beep and reading. Old stator currently in my bike red/green no beep no reading, nothing.

 

"You could possibly be looking at a coil, but I might run the resistance numbers on the stator. The lighting and ignition windings of the stator are separate, so it is possible to have lights, but no spark." -quote from another poster off BHQ.com

 

Can the stator still be bad and produce power to the lights if so how? and not supply power to the ignition coil/spark. I know they are seperate so is the voltage reg. but how is it possible?

 

Any elec gurus? This has been nawing at me for awhile i'd like to learn about this thanks. :notworthy:

Edited by dadude
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So the stator iteself the donut copper wired wrapped part is actually split up into 2 parts/coils for power? Is that why there is two wires soldered to it? the red and green wires?

 

Is this correct? if not please explain more.

 

 

Also why the need to split the stator itself into two coils for the lighting and ignition? instead of just one and send the power out to the cdi like the ignition coil or cdi to voltage regulator. Why the need for two coils of the stator? I don't understand that now, lol.

 

thanks for the answers thus far guys! :notworthy:

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Well, you would not want your lights affecting how spark you have would you?

And you woudl not want lights running from the CDI (voltage is much too high and would explode the lights, not only that but they would not stay on they would only light up when the CDI caused spark which would require much more complex electronics to deal with if it was even possible as well as decrease efficiency)

 

The stock stator harness has a plug, and a black and yellow wire.

 

The Black and yellow wire is for the lights (goes to voltage regulator),

the Plug goes to the CDI directly and by passes the regulator.

Edited by Justintoxicated
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I kind of worded this wrong I suppose.

 

"instead of just one and send the power out to the cdi like the ignition coil or cdi to voltage regulator. Why the need for two coils of the stator?"

 

I should have said.

 

just one coil and send the power out to the cdi for the ignition coil(cdi steps it up and fires) and then have power out to the voltage regulator seperate(to regulate the voltage).

 

Why the need for two coils of the stator? I still don't quite get that one. That way wouldn't effect the spark would it? Isn't that the purpose of the regulator. Doesn't the stator still supply the same amount to power both why the need for stator to be split into two coils/sections?

 

Or am I missing something here?

 

like I said. Just was curious on this and thanks a bunch for the info thus far guys! appreciate it. :notworthy:

Edited by dadude
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If there was just one coil then you would have less power going to the spark when the lights were on. It probably wouldn't matter at higher RPM's but it could potentially make it difficult or impossible to start. That's the best explaination I can come up with anyway.

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If there was just one coil then you would have less power going to the spark when the lights were on.  It probably wouldn't matter at higher RPM's but it could potentially make it difficult or impossible to start.  That's the best explaination I can come up with anyway.

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I agree if you only had one wire then there would be less power going through becouse only so much power can go through on wire ( kinda like having a stereo system in your car.. say you only have 4 gage. wire for yoor power off your battery, you can only get so much juice through it.. Thats why most people with a killer system upgrade to a 0 gage wire to draw more power to run there amp..) so by havin 2 wires would mean more power could pass through.. Does that sound right..I realy couldnt type what i was thinking so if you dont get what im trying to say then..O Well I know what i ment :P

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I understand what you're saying 99, but I don't think wire gauge is the limiting factor in this case. The banshee is only running 14ga or so anyway and not very far so if it was an issue it'd be pretty simple to change it to 12 or 10 ga. What I think is the issue is that since there's no battery to keep the voltage up at lower rpms the amount of juice the stator is producing aint much. It should be plenty to run a couple spark plugs but start throwing in lights and crap and everything is going to dim. Having your lights dim isn't really a problem, but having your spark "dim"? Basically at lower rpms with the lights on the engine would run rough at best. It could definately be addressed, but for more money and more equipment that has to be bolted to the bike. Also add in more parts to fail and having 2 seperate circuits starts to make more sense.

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  • 7 years later...

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