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Lighting and Electrical Things that go ZOT! Ignition components, batteries, lighting and accessories for your motorized bicycle


hooking up new generator coil

Things that go ZOT! Ignition components, batteries, lighting and accessories for your motorized bicycle


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  #1  
Old 11-14-2012, 06:19 PM
blckwlfny1 blckwlfny1 is offline
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Default hooking up new generator coil

[I have a coil that was originally made for a Morini motor. I assume it was designed for the one with the c shapEd stator.
the wire is basically wound around a square plastic structure. there are 2 wires coming off of it. 1 is contiguous with the coil and the other doesn't seem to be connected to anything.
I have a picture of how i think itshould go
Isv there any reason why this shouldnt work?
Also i assume the coil should be electrically isolated from the engine body {and therefore the billet} but what about that other wire????
Thanks
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Old 11-14-2012, 06:43 PM
bigbutterbean bigbutterbean is offline
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Default Re: hooking up new generator coil

It would help to tell us what engine you plan to install it from. If its a china girl (49cc or 66cc 2 stroke engine kit), the coil does ground to the engine, and the engine grounds to the frame.
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Old 11-15-2012, 07:43 AM
blckwlfny1 blckwlfny1 is offline
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Default Re: hooking up new generator coil

how do I know which wire is positive and which is negative. I don't want to blow the existing stator system

Its going on this motor. Its a Morini clone.
On this same page you'll see the stator coil assembly. This assembly
.is much larger than the china girl's

http://www.motomx.com/ktm50_adventure_engine.html

Last edited by blckwlfny1; 11-15-2012 at 09:25 AM.
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Old 11-15-2012, 10:49 AM
bigbutterbean bigbutterbean is offline
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Default Re: hooking up new generator coil

Ok, I have no idea, as I have never had any hands on experience with that engine. Hopefully someone who has will chime in.
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Old 11-15-2012, 02:39 PM
ivan H ivan H is offline
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Default Re: hooking up new generator coil

A stator coil produces AC, not DC so there is no positive & negative, it has an active & neutral, where neutral would be the 1 that connects to the C shaped core. I noticed there r 2 coils mounted on the core. U'll need 2 position the coil in the same place the origonal would b, as the position of the coil in relation to magnet rotation defines spark timing on a 2 wire CDI system. Cheers

Last edited by ivan H; 11-15-2012 at 03:04 PM.
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Old 11-16-2012, 08:28 AM
blckwlfny1 blckwlfny1 is offline
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Default Re: hooking up new generator coil

Thank you
I was going to be positioning this IN ADDITION to the other coils.
My thought was to place it mid-way between them....90 degrees from each....
The new coil would be providing a dedicated hot wire for lights whereas the existing coils would remain untouched and power the ignition
Is there any reason this wouldn't work?
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Old 11-21-2012, 07:54 PM
ivan H ivan H is offline
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Default Re: hooking up new generator coil

it should be ok in that it'll produce current, tho there's a couple of things 2 b aware of. 1, the winding should be in the same direction as the other 2 in relation 2 the core, & 2, it should have a lot less number of turns & of thicker wire than the others, to give u a lot lower voltage at a higher current. Cheers
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Old 11-21-2012, 09:37 PM
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Goat Herder Goat Herder is offline
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Default Re: hooking up new generator coil

Quote:
Originally Posted by ivan H View Post
it should be ok in that it'll produce current, tho there's a couple of things 2 b aware of. 1, the winding should be in the same direction as the other 2 in relation 2 the core, & 2, it should have a lot less number of turns & of thicker wire than the others, to give u a lot lower voltage at a higher current. Cheers
So why do you say it needs two sets of windings? He has a coil already meant for the spark plug that is completely independent of this thing in place and working fine.... Anyway one set of windings is all that needs to be for currant to a light bulb etc.. I was staring at the size in general to this thing and two set of windings would not make any sense to me.

I think it may be to small to produce any currant as is ? I surly would not be of girth to support to sets of windings. The amount of wire needed in this amount of small space cannot support two sets of winding IMO..

Do you know how many of these old mopeds still in existence had a coil for spark completely independent of the accessory coil?
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Last edited by Goat Herder; 11-21-2012 at 09:40 PM.
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Old 11-21-2012, 11:17 PM
ivan H ivan H is offline
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Default Re: hooking up new generator coil

I dont say it needs an extra coil. In 1st post I pointed out a cil roduces AC, not DC current, ' in 2nd post I said it can produce a current, but my point is if the coil aint designed as a lighting coil, its current output probly aint gunna b suitable for lighting. Cheers,
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Old 11-21-2012, 11:28 PM
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Default Re: hooking up new generator coil

Quote:
Originally Posted by ivan H View Post
it should be ok in that it'll produce current, tho there's a couple of things 2 b aware of. 1, the winding should be in the same direction as the other 2 in relation 2 the core, & 2, it should have a lot less number of turns & of thicker wire than the others, to give u a lot lower voltage at a higher current. Cheers
the winding should be in the same direction as the other 2

Cheers...
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