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Beefed up ignition??
Discussion at Motorized Bicycle Engine Kit Forum in the High Performance Bicycle Engine Tips forum. That would in theory give you higher voltage........  | | 
03-31-2008, 06:29 PM
|  | Amsoil Dealer | | Join Date: Dec 2007 Location: Duvall, WA PNW
Posts: 1,034
| |  Re: Beefed up ignition??
That would in theory give you higher voltage..... |
04-01-2008, 11:27 AM
|  | Senior Motorized Bicycle Builder | | Join Date: Mar 2008 Location: Seattle, WA
Posts: 67
| | Re: Beefed up ignition??
I'm no electrical engineer, (and it will be obvious after this question)
Could you hook up 2 CDI's and merge them into one spark plug wire? Hence, <2x the voltage into the plug? I have no idea if this is possible or not, and it sounds like it could likely short everything out or cause a CDI meltdown or fire or something.
Does anyone know what would happen if someone were to do this? |
04-01-2008, 02:51 PM
| | Amsoil Dealer | | Join Date: Dec 2007 Location: Duvall, WA PNW
Posts: 1,034
| | Re: Beefed up ignition??
Quote:
Originally Posted by SeattleMike  I'm no electrical engineer, (and it will be obvious after this question)
Could you hook up 2 CDI's and merge them into one spark plug wire? Hence, <2x the voltage into the plug? I have no idea if this is possible or not, and it sounds like it could likely short everything out or cause a CDI meltdown or fire or something.
Does anyone know what would happen if someone were to do this? | You may end up with no spark......probably not a fire, just the magneto couldn't support 2X the current draw (1/2 the resistance) and charge the capacitors....but if it could - I wonder how close in timing they would be....and then well....maybe it would fry one CDI
first......hm.....
NORMAN TRY THIS!!!!!!!!!!!!!!! |
04-01-2008, 06:47 PM
|  | LORD VADER Moderator | | Join Date: Jan 2008 Location: pampa texas
Posts: 999
| | Re: Beefed up ignition??
I don't wanta. 
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motor assisted bicycle engine headlights that work off of your white power wire. check it out
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04-09-2008, 12:11 PM
|  | Custom Builder / Dealer | | Join Date: Mar 2008 Location: Venice, CA.
Posts: 203
| | Re: Beefed up ignition??
Just a quick update...
I'm still looking into using a CDI & ignition coil from a Honda 80 or something like it. I just have to find something cheap enough that I'm not throwing away a lot of $$$ if it doesn't work.
If other people here could help-out by looking into finding a better mag coil, or even converting to a real motorcycle stator, that would be a big help!
The biggest problems I can see with using a stator are, finding one small enough, & setting the timming!
Come on fellas... we're all mad scientists here! 
Last edited by VENICE BOY : 04-09-2008 at 12:23 PM.
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04-09-2008, 09:19 PM
|  | Moderator | | Join Date: Mar 2008 Location: Tucson,Arizona
Posts: 751
| | Re: Beefed up ignition??
I'm still working on it when I have time, still no luck. I have given up on finding something to fit. The Honda C50 is the closest thing I have found.
I wonder how to go from 6v to 12v. I know how to do it in a car, but not a motorcycle. If we can get 12v, that would open the door for us, maybe.  |
04-10-2008, 01:44 PM
| | Custom Builder / Dealer | | Join Date: Mar 2008 Location: Venice, CA.
Posts: 203
| | Re: Beefed up ignition??
I just bought a new Honda C50 CDI & ignition coil from ebay... (all for $20.00 w/ shipping)
I'll have to reserch how to wire them up!
If you guys can keep working on the mag-coil, & I'll figure this one out, we'll all be riding pretty when this is done!
Thanks a lot fellas!! 
Last edited by VENICE BOY : 04-10-2008 at 01:47 PM.
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04-12-2008, 04:53 PM
|  | ADMINISTRATOR | | Join Date: Dec 2007 Location: St. Croix, US Virgin Islands
Posts: 1,451
| | Re: Beefed up ignition??
good job! I look forward to hearing the results on your modification
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04-15-2008, 09:54 AM
| | Custom Builder / Dealer | | Join Date: Mar 2008 Location: Venice, CA.
Posts: 203
| | Re: Beefed up ignition??
Just a quick update... I got the new parts, they are actually from a crf50 or xr50... I found a wiring diagram on the web, & I also I ordered a $10.00 wiring harness to trace the wires (just to be sure)
The parts are for a 4-stroke engine, but I think they will still work.
I think the way it works is, it fires on every revolution of the engine, (it just fires a dead spark at the top of the exaust stroke too.)
If anyone knows different, please let me know. |
04-15-2008, 03:59 PM
| | Moderator | | Join Date: Mar 2008 Location: Tucson,Arizona
Posts: 751
| | Re: Beefed up ignition??
Quote:
Originally Posted by VENICE BOY Just a quick update... I got the new parts, they are actually from a crf50 or xr50... I found a wiring diagram on the web, & I also I ordered a $10.00 wiring harness to trace the wires (just to be sure)
The parts are for a 4-stroke engine, but I think they will still work.
I think the way it works is, it fires on every revolution of the engine, (it just fires a dead spark at the top of the exaust stroke too.)
If anyone knows different, please let me know. | Isn't the crf & Xr 12 volt? I gave one of my mag's from one of my new kit's to my MSD dealer. He's going to see what he can do with it but I have not spoken to him yet. I'll see if I can get a hold of him today and see if he came up with anything. | | Thread Tools | | | | Display Modes |  Linear Mode | 
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