Author Topic: CDI box, but not the usual problem  (Read 18465 times)

Offline Wrider

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CDI box, but not the usual problem
« on: March 22, 2011, 04:21:16 AM »
So I was reading about the CDI box, and I went to pull mine, checked, and yep dead...
Only it's not the transistor.  Two of the resistors in there that are side by side managed to short (they're black and you can't read the color code, pretty much guaranteed).
So I went and checked, and can't really afford to spend a couple hundred on a new ignitor.  I was wondering if someone would be so kind as to pull theirs and give me the color code of the resistors in there.  The ones I'm talking about are the obviously burnt ones in the middle of the following picture.

I'd really appreciate that, and that way I could get the bike running for relatively cheap versus spending a lot of money I don't have!

Offline interfuse

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Mike

'91 GSF400
It's more fun to ride a slow bike fast than a fast bike slow.

Offline interfuse

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Re: CDI box, but not the usual problem
« Reply #2 on: March 22, 2011, 02:24:16 PM »
Mike

'91 GSF400
It's more fun to ride a slow bike fast than a fast bike slow.

Offline Wrider

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Re: CDI box, but not the usual problem
« Reply #3 on: March 22, 2011, 04:21:14 PM »
That's odd, it's a different box than I have.  It's close but not the same.  See next to where the two transistors are?  How there are two resistors side by side?  I have 4 total ones there and a lot busier circuit board.



Here's an overall pic of my board.  You can see the two fried resistors in the middle there.  Then there are two good ones to the left.

Offline interfuse

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Re: CDI box, but not the usual problem
« Reply #4 on: March 22, 2011, 04:37:32 PM »
Odd. What year?

The one here looks the same as the one I posted.

http://forums.banditalley.net/index.php?topic=431.0

What markings where on the outside of the CDI? It should look something like this:

http://cgi.ebay.ca/CDI-ignitor-ecu-bandit-400-gsf400-suzuki-/390251973190?pt=Motorcycles_Parts_Accessories&hash=item5adcd48a46#ht_2107wt_862

The part number may be different depending on the year.
Mike

'91 GSF400
It's more fun to ride a slow bike fast than a fast bike slow.

Offline Wrider

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Re: CDI box, but not the usual problem
« Reply #5 on: March 22, 2011, 04:52:42 PM »
It's a 1993 US model.  Haven't found a charcoal canister so pretty sure it's not a California model.
Part number is
JO4 32900-10D60
BB7701 5J06
Made in Japan by Kokusan Denki.

EDITED to include the second 7 after BB
« Last Edit: March 22, 2011, 05:01:28 PM by Wrider »

Offline Wrider

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Re: CDI box, but not the usual problem
« Reply #6 on: March 22, 2011, 07:18:42 PM »
So I went pro-active and pulled them off of the board (not literally, desoldered them of course) and yep, burnt all the way through...  :banghead:
So if someone gets a chance to take a picture of theirs or even just tell me the color codes and which one goes where, I'd really appreciate it!
I'm gonna be away from my computer until Saturday night, so if I don't respond right away I will then.
Hopefully someone can snap a picture or something, and THANKS IN ADVANCE!  :bigok:

Offline gixxerjasen

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Re: CDI box, but not the usual problem
« Reply #7 on: March 22, 2011, 11:53:49 PM »
I can't really help with the resistors yet, but I thought I'd toss this out there.  If your camera has this mode...



It helps greatly when posting pics of close ups.  That's the macro mode.

Offline Wrider

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Re: CDI box, but not the usual problem
« Reply #8 on: March 23, 2011, 12:45:33 AM »
Cool, I'll keep that in mind.  My photography abilities extend to camera phones and point and shoots.

Offline canyonbreeze

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Re: CDI box, but not the usual problem
« Reply #9 on: March 23, 2011, 11:54:12 AM »
It looks as if you could read the first two stripes maybe if the picture was clearer.

PS - I changed the electrolytic can capacitors for mil-spec tantalum solid ones.  Will never leak and temp rated to +125C.  Cost about $7.

Offline stormi

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Re: CDI box, but not the usual problem
« Reply #10 on: March 27, 2011, 02:48:49 AM »
Wrider, where are you?  Or more specifically, what bike is it?  If you're really lucky, and it's a canadian model, or one that can take an canadian model, I have one for you.  It was part of my "spare parts" bin from a donor bike, and now that I've sold Dita, I no longer need it.

Edit: Damn,. sorry, I read further in the post... I don't know if you can use a Canadian model ignitor, since we had a different redline than you did?
« Last Edit: March 27, 2011, 02:54:06 AM by stormi »
stormi

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Offline stormi

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Re: CDI box, but not the usual problem
« Reply #11 on: March 27, 2011, 03:06:23 AM »
OK,.. this is the one that Dita had, it should be the same as the one that I pulled off the other bike.  (No sticker on that one)
We're not 100% sure what year it was that we pulled it from, but it should have been compatible with Dita.

If I can get the cover off it without doing any damage, I can post a pic of that board too, if it's compatible, we can work out a deal, it'll be better than the fleabay one for sure. ;)
« Last Edit: March 27, 2011, 03:16:05 AM by stormi »
stormi

Dita - 91 Bandit 400 - SOLD
Blue - 02 Hornet 919 - Perfect Gentleman
02 KTM 200 EXC - Sold
08 VFR800 - Lowered 1.2"
17 KTM RC390
17 Husky TC85 converted to 105

Electrosport Charging System Test - it really works

Offline Wrider

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Re: CDI box, but not the usual problem
« Reply #12 on: March 27, 2011, 03:45:09 AM »
That would be it right there!
To pull it out all you need to do is use a set of pliers to grab hold of the plastic plugs and pull.  May be a little stiff, but there are no plastic connectors holding it in, possibly some melted plastic from the circuit board... Thats what was holding mine in.

Offline stormi

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Re: CDI box, but not the usual problem
« Reply #13 on: March 27, 2011, 04:40:35 AM »
K,.. I'll need one of the garage pliers. (Apparently the ones from my computer repair kit aren't up to the job.)
That'll have to wait til morning though.  I'll give it a shot though and post a pic when I can tomorrow. :)
stormi

Dita - 91 Bandit 400 - SOLD
Blue - 02 Hornet 919 - Perfect Gentleman
02 KTM 200 EXC - Sold
08 VFR800 - Lowered 1.2"
17 KTM RC390
17 Husky TC85 converted to 105

Electrosport Charging System Test - it really works

Offline canyonbreeze

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Re: CDI box, but not the usual problem
« Reply #14 on: March 27, 2011, 01:29:50 PM »
The circuit board slid in on the connector end and held with epoxy.  The board itself has some conformal coating to protect from moisture.  When pulling it out do some working back and forth to crack the epoxy joints.  A hard straight pull may damage the board.

(33 years as Engineering Technician).