Ducati Monster Forum

Moto Board => Tech => Topic started by: Real Recognize Real on July 20, 2011, 02:16:18 PM

Title: '94 M900 Ignitor boxes
Post by: Real Recognize Real on July 20, 2011, 02:16:18 PM
I need to replace both modules since they were the cause of the lack of spark. Are there after market options or is Ducati NA the only source for them?
Title: Re: '94 M900 Ignitor boxes
Post by: Düb Lüv on July 20, 2011, 06:05:14 PM
ignitech(or similar), dp modules, or OEM.

that's about it. used on ebay the oem modules are usually $150-$200 for the pair. sometimes you can find a bargin though
Title: Re: '94 M900 Ignitor boxes
Post by: Real Recognize Real on July 20, 2011, 09:01:55 PM
OK. I see that the dp modules are $233 each on the DNA website. Can they be had cheaper somewhere else? How much do the oems cost typically?
Title: Re: '94 M900 Ignitor boxes
Post by: ducatiz on July 20, 2011, 09:05:02 PM
There are 3 different DP modules, depending on the curve you want.

You can poke around on fleabay.

The Ignitech runs about â,¬120 plus shipping. 
Title: Re: '94 M900 Ignitor boxes
Post by: Real Recognize Real on July 20, 2011, 09:17:49 PM
Quote from: ducatiz on July 20, 2011, 09:05:02 PM
There are 3 different DP modules, depending on the curve you want.

You can poke around on fleabay.

The Ignitech runs about â,¬120 plus shipping. 

I saw your post in the CAM section about ordering the ignitech system. My bike is currently at ducpond and they told me they are trying to source ignitor boxe without spending n arm and a leg for the OEM modules.
Title: Re: '94 M900 Ignitor boxes
Post by: Howie on July 20, 2011, 09:56:27 PM
http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html (http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html)
Title: Re: '94 M900 Ignitor boxes
Post by: Real Recognize Real on July 21, 2011, 03:36:53 AM
Quote from: howie on July 20, 2011, 09:56:27 PM
http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html (http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html)

Thanks!
Title: Re: '94 M900 Ignitor boxes
Post by: ducatiz on July 21, 2011, 05:44:54 AM
Quote from: howie on July 20, 2011, 09:56:27 PM
http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html (http://www.electrexworld.co.uk/ducati-road-motorcycles-electrical-parts-1259-0.html)

i've seen those, but what curve do they have? 
Title: Re: '94 M900 Ignitor boxes
Post by: Real Recognize Real on July 21, 2011, 10:07:55 AM
Quote from: ducatiz on July 21, 2011, 05:44:54 AM
i've seen those, but what curve do they have? 

Please bear with me as I ask the following questions. I'm trying to understand the purpose of these modules.

1) Do these modules control the firing of the coil, ie ot advances or retards ignition "firing"
2) If I choose  a module(DP) that has a different curve than the OEM unit, is it a "plug-n-play" scenario or should other adjustments be made to the bike.
3) Can these modules be by-passed, ie can the motorcycle run w/out ignitor boxes
4) What are common causes of failure for ignitor boxes

Title: Re: '94 M900 Ignitor boxes
Post by: ducatiz on July 21, 2011, 11:27:42 AM
Quote from: gwjcat on July 21, 2011, 10:07:55 AM
Please bear with me as I ask the following questions. I'm trying to understand the purpose of these modules.

1) Do these modules control the firing of the coil, ie ot advances or retards ignition "firing"
2) If I choose  a module(DP) that has a different curve than the OEM unit, is it a "plug-n-play" scenario or should other adjustments be made to the bike.
3) Can these modules be by-passed, ie can the motorcycle run w/out ignitor boxes
4) What are common causes of failure for ignitor boxes



1.  Yes.
2.  More or less plug and play, but if you pick something that has a hotter curve than the original, you should probably tune accordingly.
3.  No.
4.  Dropping them.  Age.  Electrical surge.  Crappy original build.
Title: Re: '94 M900 Ignitor boxes
Post by: Howie on July 21, 2011, 12:27:00 PM
Quote from: ducatiz on July 21, 2011, 05:44:54 AM
i've seen those, but what curve do they have? 

No curve is published.  They are supposed to be replacements, not "hot rod" parts.
Title: Re: '94 M900 Ignitor boxes
Post by: ducatiz on July 21, 2011, 01:05:53 PM
I bet you could ask them and the would tell. 
Title: Re: '94 M900 Ignitor boxes
Post by: beethoven on July 21, 2011, 06:00:01 PM
Ive used Electrexworld  for these on 97M900. Slightly different resistance (higher if I remember) but no issues and great price and service.
Title: Re: '94 M900 Ignitor boxes
Post by: Speeddog on July 22, 2011, 08:18:06 AM
Quote from: gwjcat on July 21, 2011, 10:07:55 AM
~~~SNIP~~~

4) What are common causes of failure for ignitor boxes


I've seen a really high correlation between loose battery connections and dead ignitors.
Title: Re: '94 M900 Ignitor boxes
Post by: ducpainter on July 23, 2011, 04:46:42 AM
Quote from: Speeddog on July 22, 2011, 08:18:06 AM
I've seen a really high correlation between loose battery connections and dead ignitors.
I saw a bike destroy every box installed due to a missing engine/frame ground.
Title: Re: '94 M900 Ignitor boxes
Post by: Speeddog on July 23, 2011, 08:28:06 AM
Quote from: ducpainter on July 23, 2011, 04:46:42 AM
I saw a bike destroy every box installed due to a missing engine/frame ground.

That's a strange one.

You'd think there would be enough of a ground path through the engine mounts.
Current for the starter motor has to travel somehow...

Powdercoated frame?
Title: Re: '94 M900 Ignitor boxes
Post by: ducpainter on July 23, 2011, 08:58:06 AM
Quote from: Speeddog on July 23, 2011, 08:28:06 AM
That's a strange one.

You'd think there would be enough of a ground path through the engine mounts.
Current for the starter motor has to travel somehow...

Powdercoated frame?
nope...

freshly painted.

No other cause was ever found.

It ate 4 of them before we gave up.

There was never any reason figured out
Title: Re: '94 M900 Ignitor boxes
Post by: Speeddog on July 23, 2011, 10:57:10 AM
But with the engine-frame ground wire installed/attached, all was good?
Title: Re: '94 M900 Ignitor boxes
Post by: ducpainter on July 23, 2011, 01:07:23 PM
Quote from: Speeddog on July 23, 2011, 10:57:10 AM
But with the engine-frame ground wire installed/attached, all was good?
We never found out.

The bike was disassembled.