A new found Electronic ignition system!

[Blurredman]

Got a picture/link, Arny?


This Muller one, as mentioned has the benefit of not needing the seperate box, and supporting 6/12v out of the box.




Guesi's ignition is a hundred euros..

https://www.guesi-motorradteile.de/inde ... ng=contact

[arny]

There are some fine ignition systems out there, but they are quite expensive indeed. Not that it's bad in itself, but when you consider the price of the bikes themselves... well, I've bought my entire ETZ250 for the price of a Powerdynamo system for it... So I must say I quite appreciate a cheap electronic ignition solution.

I'm not sure if it's ok to post links to products here, but here it is, Blurredman: http://www.gotronic.ro/new/index.php?op ... 59&lang=en

Their site is partially translated to English, but some parts are in Romanian which makes it a bit hard to navigate there. The linked model fits MZ bikes, and it works with the factory cam, which makes it even cheaper than it is for other bikes unlike Jawas for example, which need additional parts. Unfortunately the ignition from the above link also doesn't have English documentation but only in Romanian, but there is this, for a slightly different model but it seems there are no substantial differences for the end user: http://www.gotronic.ro/new/images/stori ... nglish.pdf

If it's not ok to link this, mods please delete; not that they pay me or anything

[Puffs]

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[Blurredman]

I'm tempted to create a thread sticky that lists all electronic ignitions and invite others to post on it to be added. Prices, disadvantages or positives of certain systems, etc

[Puffs]

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[DAVID THOMPSON]

a system for the new 4 cycle 125 bikes would be nice

but have had very few comment on people needing a replacement
Dave

[arny]

When discussing electronic ignitions I guess it would also be interesting to mention which ones do control igniton advance...

So far the only one I am aware of that does automatic advance is Powerdynamo/VAPE ignition. Most other aftermarket ones including Gotronic I mentioned, don't vary ignition advance but are simple "transistorised ignitions" i.e. serve only as maintenance free points replacement.

Are there other aftermarket ignitions that vary advance timing automatically?

Does any of the stock MZ electronic ignitions vary advance timing automatically?

[DAVID THOMPSON]

Does any of the stock MZ electronic ignitions vary advance timing automatically?

500 rotax and the 125cc new 4 stroke bikes and the 660 motors

[Puffs]

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[Guesi]

When discussing electronic ignitions I guess it would also be interesting to mention which ones do control igniton advance...

So far the only one I am aware of that does automatic advance is Powerdynamo/VAPE ignition. Most other aftermarket ones including Gotronic I mentioned, don't vary ignition advance but are simple "transistorised ignitions" i.e. serve only as maintenance free points replacement.

Are there other aftermarket ignitions that vary advance timing automatically?

Does any of the stock MZ electronic ignitions vary advance timing automatically?

Our ignition changes ignition from 15 degrees to 23 degrees, depending on the revs.

[Puffs]

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[Guesi]

Yellow :Stic ignition timing 23 degrees
grey: Static ingition timing 15 degrees
green: our programed ignition timing

Our ignition tries to keep the time before ignition at 1,3 ms over all the rev areas.

[arny]

Then I'd say ignition from Guesi is really worth trying, for other ones in that price range don't have automatic advance!

Arny, I don't know the answer to your question insofar as pertaining to electronic ignitions for the older 2T MZ engines.

A question I have is: are you sure that Powerdynamo/Vape advance the ignition timing? Would you have an advance curve?

Yes, I've seen their specs, but unfortunately I don't have any links at hand. They're too expensive for me, so I haven't really kept much info on them. I guess it could be googled easily...

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[Guesi]

In Wikipedia ist zu lesen, dass die Entzündung des Kraftstoff-Luft Gemischs unter Anderem abhängig von
Temperatur und des Kraftstoff-Luft Verhältnisses ist, ca. 1ms beträgt und im OT den höchsten Druck
erzeugen soll.

According to wikipedia the ingniton of the fuel-air mixture depends, together with other factors ,on temperature and the relation of fuel and air (Lambda factor), should be about 1 ms beforeTDC to provide the highest pressure on TDC.
That is why we try to keep it around that area of 1,0 to 1,3 ms..