SF3 Blowing Plugs after electronic ignition installed

M

Mumbles

New member
Location
Mid North Coast NSW
Yep easy answer would be to put the points back in but would defeat the purpose.
The electrodes in the plug one-sided a time blow when I turn the ignition on ... pre starting. Been ongoing for months.
Has anyone come across this before or have a potential cure by any chance.
The problem has kept quite a few minds better than mine wondering?
Have tried multiple plug types.
Thanks for any wisdom all gratefully received.
Mumbles
 
please explain what you mean by
"Blowing plugs"
"The electrodes in the plug one-sided a time blow when I turn the ignition on ... pre starting."

BLOW.... hmmmm burning away, eroding, overheating, a process which takes a bit of time even if its short, blow sounds instant and you imply before you crank the motor? is that correct? never used that term for a plug defect.More info please.
CLEM
 
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Exmoor beast said:
Dyna S fire once on initial voltage- my Guzz sometimes coughs when switched on.
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Sign of a very poor design or too basic ignition, parts of the world this cold turn on firing is not legal and leaves the supplier open to law suit, if unintended motor operation ensues. Not helpful this statement overall in regards to older vehicles. Worked on Dyna S, the mechanicals are nicely made, ( designer ) tried to make the electronics as trouble free as possible and low cost in parts count. Its very basic.

Perhaps the OP is indicating a cold turn on spark initiation, terminology seems to be the issue.

BTW fuses do not "Blow" they "Clear". Working in multi million dollar data centres, terms like "Blow" cause alarm to centre managers. Your UPS just cleared $3,500 worth of Silver/Sand fuse cartridges, has merit over "Blow/Blew" ie taking the whole data centre with the UPS..... my students benefited from terminology at a more professional level in their careers.
 
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I've got a Dyna S on my Guzzi (installed by previous owner). I can confirm what Jon says, it's a lousy design. Can cough when switched on or off and powers the coils when the engine isn't running. It has no smarts in it whatsoever, no advance curve, nothing (retains the old mechanical advance of the points system). They are still available at about twice the price of an Ignitech. I don't understand why anybody would buy the the stupid things.
 
GregT said:
What is the ignition ? Most will only spark if there's a pickup/trigger in the correct place to fire.
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Elektronik Sachse
Dellortoman said:
Yeah, I don't understand what's meant by that either, unless it's the the "cough" when switched on that's been discussed.
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Yeah a cough or fart would explain what I am hearing (ignition on pre start) - doing ohms test with a multi meter on the electrode of the plug shows it is broken, not conducting any longer. The ignition is a Elektronik Sachse - Ta
 
CLEMTOG said:
please explain what you mean by
"Blowing plugs"
"The electrodes in the plug one-sided a time blow when I turn the ignition on ... pre starting."

BLOW.... hmmmm burning away, eroding, overheating, a process which takes a bit of time even if its short, blow sounds instant and you imply before you crank the motor? is that correct? never used that term for a plug defect.More info please.
CLEM
Click to expand...
Yeah a cough or fart would explain what I am hearing (ignition on - pre start) - doing ohms test with a multi meter on the electrode of the plug shows it is broken, not conducting any longer. The ignition is a Elektronik Sachse - Hope this helps excuse terminology
 
Dellortoman said:
I've got a Dyna S on my Guzzi (installed by previous owner). I can confirm what Jon says, it's a lousy design. Can cough when switched on or off and powers the coils when the engine isn't running. It has no smarts in it whatsoever, no advance curve, nothing (retains the old mechanical advance of the points system). They are still available at about twice the price of an Ignitech. I don't understand why anybody would buy the the stupid things.
Click to expand...
My brother and a good mate both have the Adelaide-made Tri-Spark ignition in their Le Mans 3 Guzzis with nary a problem and both run hard and strong with no odd side-effects. Steve Kelly who makes the systems is very good to deal with, too.
 
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