Are we looking at just another "gimmick" here?

DAMIEN1307

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Zeda 80 has recently come out with its "Pro" edition,


2 spark plugs with a dual spark CDI unit.

I'm looking for the more experienced one's here in the forums to tell me if i'm right or wrong in suspecting this is just another "gimmick" like so many other things that have been "offered" 2 stroke users over the years claiming more torque and better high end speed etc. etc. etc. "ad nauseam".

I cannot see how you achieve much better spark when your still working off the same basic magneto's supplying electrical power to the dual spark CDI unit...I suspect that the spark would actually be weaker between 2 plugs rather than just one.
(It is the very same "improved", "upgraded", magneto that comes with the regular, stock Zeda 80, single spark plug kit)

So what do you more experienced folks that have either played with these or know the basic theory or practical application behind this possible "innovative" design have to say about these things that seems to be abounding as of late???...Just more "snake oil"???...Any "Myth Busters" here???...lol...TY...DAMIEN
 

DAMIEN1307

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The principle used in aircraft is somewhat different here than on a CG...Aircraft engines such as those described in that article have built in redundancy against complete engine failure using two plugs per cylinder...That also requires the use of a separate magneto for each spark plug supplying full magneto power per spark plug, not one magneto splitting its power between two spark plugs resulting in a weaker spark...DAMIEN

Ps...I used to fly Cessna 150s, 152s, and 172s and Piper Tomahawks back in the 80s.
 

Chainlube

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The principle used in aircraft is somewhat different here than on a CG...Aircraft engines such as those described in that article have built in redundancy against complete engine failure using two plugs per cylinder...That also requires the use of a separate magneto for each spark plug supplying full magneto power per spark plug, not one magneto splitting its power between two spark plugs resulting in a weaker spark...DAMIEN

Ps...I used to fly Cessna 150s, 152s, and 172s and Piper Tomahawks back in the 80s.
It's not such a big deal if you're riding your bike and the ignition craps out. Planes are a little different.
 

Wrench

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Zeda 80 has recently come out with its "Pro" edition,


2 spark plugs with a dual spark CDI unit.

I'm looking for the more experienced one's here in the forums to tell me if i'm right or wrong in suspecting this is just another "gimmick" like so many other things that have been "offered" 2 stroke users over the years claiming more torque and better high end speed etc. etc. etc. "ad nauseam".

I cannot see how you achieve much better spark when your still working off the same basic magneto's supplying electrical power to the dual spark CDI unit...I suspect that the spark would actually be weaker between 2 plugs rather than just one.
(It is the very same "improved", "upgraded", magneto that comes with the regular, stock Zeda 80, single spark plug kit)

So what do you more experienced folks that have either played with these or know the basic theory or practical application behind this possible "innovative" design have to say about these things that seems to be abounding as of late???...Just more "snake oil"???...Any "Myth Busters" here???...lol...TY...DAMIEN


Gimmick because it sounds cool and has some past history

In the 60s M/C racers started using 2 spark plugs to try and win races.
Theory is to make 100% of the fuel to ignite for better combustion.
If it was a proven way to win races all M/C racers would be using 2 S/P today

IMO all's it really does is make the head hotter
 

Wrench

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The principle used in aircraft is somewhat different here than on a CG...Aircraft engines such as those described in that article have built in redundancy against complete engine failure using two plugs per cylinder...That also requires the use of a separate magneto for each spark plug supplying full magneto power per spark plug, not one magneto splitting its power between two spark plugs resulting in a weaker spark...DAMIEN

Ps...I used to fly Cessna 150s, 152s, and 172s and Piper Tomahawks back in the 80s.
Yes' Airplanes have 2 ignition systems for safety, in case one system fails the other ignition system takes over so ya don't crash.
 

Zak

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The principle used in aircraft is somewhat different here than on a CG...Aircraft engines such as those described in that article have built in redundancy against complete engine failure using two plugs per cylinder...That also requires the use of a separate magneto for each spark plug supplying full magneto power per spark plug, not one magneto splitting its power between two spark plugs resulting in a weaker spark...DAMIEN

Ps...I used to fly Cessna 150s, 152s, and 172s and Piper Tomahawks back in the 80s.
There is also a little snippet about a "twin flame front" in there. But planes are much different than bicycles, less air, more redundancy... the twin flame front might be moot as well.
 

darwin

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Ford used dual plugs per cylinder on the 2.3 4cyl Ranger motors for years. It's a good motor except when plug changes were needed, a b**ch to get at a few of them. Dunno if they fired differently, can't remember the coil configuration. A lot of money was spent developing that motor. Must have been used in other models in history. My thinking is it would create better combustion then a single plug. Maybe more efficient is a better word.
 

DAMIEN1307

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Ford used dual plugs per cylinder on the 2.3 4cyl Ranger motors for years. It's a good motor except when plug changes were needed, a b*tch to get at a few of them. Dunno if they fired differently, can't remember the coil configuration. A lot of money was spent developing that motor. Must have been used in other models in history. My thinking is it would create better combustion then a single plug. Maybe more efficient is a better word.
Theirs was a different concept...One plug was for the intake and one plug was for the exhaust...DAMIEN

The 2.3 L engine is a 4-cylinder engine that takes 8 spark plugs. Four are used on the intake side to ignite the fuel, and four are used on the exhaust side to ignite the vapors before they are released as exhaust fumes.
 

Greg58

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Unless the coil is upgraded the cdi will be limited, the one good thing about a dual plug head is you have a spare plug in case one fouls. A lot of Yamaha dirt bikes had them, only one plug was used at a time.
 
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