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Lighting and Electrical Things that go ZOT! Ignition components, batteries, lighting and accessories

View Poll Results: Are You Going to Roll Your Own CDI?
No, too complicated and difficult. 26 24.53%
Yes, but only one, for my own MB. 34 32.08%
Yes, a few for my own use. 37 34.91%
Yes, many, I'm gonna sell 'em! 9 8.49%
Voters: 106. You may not vote on this poll

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  #11  
Old 04-05-2011, 02:41 PM
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Skarrd Skarrd is offline
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Default Re: Roll Your Own CDI

Quote:
Originally Posted by rohmell View Post
Some more information about his CDI:
Repairing the KDX CDI
yeah that's were i found the schematic.

honestly i can't see that he really changed all that much. since the base timing is going to be set by the magnets position, perhaps just changing out the capacitor for the 5.0uf size so it tapers off at high rpm rather than just going down farther.
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Traditional bicycle riders think we're cheaters. Non riders think our bikes are toys. Bicycle shops think we're a threat. Tree huggers think we're polluters. The police don't know what to think.
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  #12  
Old 05-01-2011, 01:54 AM
Stormsorter Stormsorter is offline
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Default Re: Roll Your Own CDI

I did some digging on his site and found this.
Quote:
I made my own CDI unit by copying the design of the KDX200 CDI and changing two capacitors.
Maybe DaveC would be kind enough to open his up and tell us the markings on the capacitors. My cdi just burnt out and I can't wait 2 weeks so its build one or buy a stock one and I'd rather build the better one.
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  #13  
Old 05-01-2011, 08:24 AM
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rohmell rohmell is offline
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Default Re: Roll Your Own CDI

The 4.7 uF was changed to 5.7uF, and the 1.5 uF was changed to a metallized polypropylene type.
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  #14  
Old 05-01-2011, 11:55 AM
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DaveC DaveC is offline
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Default Re: Roll Your Own CDI

Quote:
Originally Posted by rohmell View Post
The 4.7 uF was changed to 5.7uF, and the 1.5 uF was changed to a metallized polypropylene type.
Thank you for doing that, I consider jaguar a friend and I was reluctant to do that. He put a lot of time into thought and development. I completely understand the "do-it-yourself" nature of motorbikeing. The circuit is so simple I could do knockoff's of his knockoff but I'm not going there....well...maybe after he starts to market them through others
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  #15  
Old 05-01-2011, 06:04 PM
Stormsorter Stormsorter is offline
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Default Re: Roll Your Own CDI

Would be nice if he had a deal with a store here in the states. If he did I would just order one. If so would just get a stock one for now and order his when I had the extra cash.

Can I assume you meant 5.6uf cant find a 5.7? As for tolerance 10% that's capacitive tolerance and 5% would be ok if not better correct?

Well after further testing looks like both my cdi and magneto died. Must of burnt up the mag trying to start it before I realized the cdi was dead. So it looks like I'm just getting stock for now. Looks like a proper cdi will have to wait a month or two. Might just go ahead and buy it then but he should at least put it on ebay I'm just not comfortable with paypal alone.
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  #16  
Old 05-01-2011, 08:16 PM
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rohmell rohmell is offline
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Default Re: Roll Your Own CDI

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Originally Posted by Stormsorter View Post
Can I assume you meant 5.6uf cant find a 5.7? As for tolerance 10% that's capacitive tolerance and 5% would be ok if not better correct?
1.0uF in parallel with the 4.7uF.
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  #17  
Old 05-07-2011, 08:07 AM
damo99 damo99 is offline
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Default Re: Roll Your Own CDI

you can buy one here
i think this is jaguars actual kit
Wolf Pack Racing CDI Kit
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  #18  
Old 05-07-2011, 11:33 AM
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Skarrd Skarrd is offline
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Default Re: Roll Your Own CDI

yup that's his. looks like i bought mine just in time.
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Quote:
Originally Posted by biknut View Post
Traditional bicycle riders think we're cheaters. Non riders think our bikes are toys. Bicycle shops think we're a threat. Tree huggers think we're polluters. The police don't know what to think.
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  #19  
Old 06-02-2011, 02:20 PM
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halfevil333 halfevil333 is offline
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Default Re: Roll Your Own CDI

Quote:
Originally Posted by rohmell View Post
The 2nd schematic uses a pot which will allow you to vary the timing manually.
I've found using the pot alters my timing as well, def' retarded- not advanced!!!
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  #20  
Old 06-04-2011, 03:41 PM
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decoherence decoherence is offline
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Default Re: Roll Your Own CDI

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Originally Posted by halfevil333 View Post
I've found using the pot alters my timing as well, def' retarded- not advanced!!!
nice! it deft slows me down.
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