Planet Minis

MagicJuice · 10-09-2009, 10:59 AM

Hallo everyone,
my name is Alex and im from Greece,from the island of Rhodes.I have a few Honda Monkey's too(3 x 1994 models) and they have always been tuned since the first day i bought them.A month ago i desided to tune one of them everything from the begining and now i have a full complete Takegawa engine.I dont know if i mistake buying the Twin Spark Head but since it was a newer version of the super head i thought it would be better.The problem im facing is with the two igniyion coils and the 1-2 cable adaptor.Everything seems to be look ok BUT its not.The sparks ARE NOT working both together and its not a broblem i only have.I tested in 2 other Monkey's i have and its the same.After many hours of searching i realised that its the problem starts from the rotor to the CDI and the coils.Thats why takagawa gives a special rotor with two coils directly (without cdi box).The question i have :
Is it possible i'll chamge my electrical system and make it work like the Takegawa rotor,or anyhow make work the coils All The Time Together ? Thanks and nice to meet you all.

firepower354 · 10-09-2009, 11:11 AM

Streetbike dual coil?

MagicJuice · 10-09-2009, 11:29 AM

Quote:

Originally Posted by firepower354

Streetbike dual coil?

Yes.Two sparks-two coils,but one cdi.this the problem.

Kurlon · 10-09-2009, 12:28 PM

Quote:

Originally Posted by MagicJuice

Yes.Two sparks-two coils,but one cdi.this the problem.

What Firepower is suggesting is you get a dual output SINGLE coil, like you find on most inline 4 sportbikes. Hooks up to your CDI like a normal coil, but you get two plug leads out of it that fire at the same time.

cdoublejj · 10-09-2009, 07:37 PM

Quote:

Originally Posted by Kurlon

What Firepower is suggesting is you get a dual output SINGLE coil, like you find on most inline 4 sportbikes. Hooks up to your CDI like a normal coil, but you get two plug leads out of it that fire at the same time.

NICE, the only use i can for see of this is smoother running no backfire or kick back.

z50 chopper · 10-09-2009, 09:27 PM

Quote:

Originally Posted by cdoublejj

NICE, the only use i can for see of this is smoother running no backfire or kick back.

Also hotter spark in the chamber which means more fuel is burnt up instead of it going out the exhaust unused. It also could possibley increase hp as with more spark cause a larger 'explosion' in the chamber which forces the piston down faster and increase fuel mileage.
From a physics point of view it makes sense.

MagicJuice · 10-10-2009, 02:05 AM

Quote:

Originally Posted by Kurlon

What Firepower is suggesting is you get a dual output SINGLE coil, like you find on most inline 4 sportbikes. Hooks up to your CDI like a normal coil, but you get two plug leads out of it that fire at the same time.

Its the same.Its one double coil practicaly.

cdoublejj · 10-10-2009, 06:42 AM

Quote:

Originally Posted by z50 chopper

Also hotter spark in the chamber which means more fuel is burnt up instead of it going out the exhaust unused. It also could possibley increase hp as with more spark cause a larger 'explosion' in the chamber which forces the piston down faster and increase fuel mileage.
From a physics point of view it makes sense.

theoretically, unless you have some much compression it snuffs out the spark, basically i'm disagreeing some what. when it ignites it isa chain reaction all you need is for some of it to burn wich in turns burns the rest of of it like touch a lit match to a match book. my 2 cents

MagicJuice · 10-10-2009, 06:49 AM

Quote:

Originally Posted by cdoublejj

theoretically, unless you have some much compression it snuffs out the spark, basically i'm disagreeing some what. when it ignites it isa chain reaction all you need is for some of it to burn wich in turns burns the rest of of it like touch a lit match to a match book. my 2 cents

If i understand well,you mean that i should live it like this ?

Adam z50+R · 10-10-2009, 07:00 AM

hi
i run a 124cc twinspark +R motor in my modded z50r,
and was pondering the similar thought,,
i am using currently a kitaco super coil on my regular plug and a stock crf50 coil for the sub-plug ( lol )
but i tried to ensure the ht leads were the same size

although in the world of cars ,,alfa-romeo twinsparks fire with slightly different timing?

i've owned the twinspark+R nearly 3 years now and it works great, if anything far too much power for off-road,
i may decrease its capacity for the uk 88cc minibike masters next yr

the said benefits of twinspark;; from takegawa
as both the single c.d.i and twin ignition coil are used, a sub plug has been added to the existing superhead+R. thus this kit helps burn the unburned gas at the opposite side of the original plug, almost complete combustion can be realized and the engine can be more powerful at any level of revolutions, especially power characteristics at the high-rotary area has improved

z50 chopper · 10-10-2009, 11:29 AM

Quote:

Originally Posted by cdoublejj

theoretically, unless you have some much compression it snuffs out the spark, basically i'm disagreeing some what. when it ignites it isa chain reaction all you need is for some of it to burn wich in turns burns the rest of of it like touch a lit match to a match book. my 2 cents

It has actually been proven on larger displacement engines. On such small displacement engines I don't see there being much of an improvement, except maybe with proper porting and polishing the combustion chamber etc....

z50 chopper · 10-10-2009, 11:37 AM

Quote:

Originally Posted by Adam z50+R

the said benefits of twinspark;; from takegawa
as both the single c.d.i and twin ignition coil are used, a sub plug has been added to the existing superhead+R. thus this kit helps burn the unburned gas at the opposite side of the original plug, almost complete combustion can be realized and the engine can be more powerful at any level of revolutions, especially power characteristics at the high-rotary area has improved

very well said Adam.
I was gonna explain it like blowing up a pumpkin with firecrackers you stick one in and you only blow up half the pumpkin but stick 2 in on opposite sides you can blow the whole pumpkin up.

cdoublejj · 10-10-2009, 06:01 PM

Quote:

Originally Posted by z50 chopper

It has actually been proven on larger displacement engines. On such small displacement engines I don't see there being much of an improvement, except maybe with proper porting and polishing the combustion chamber etc....

I see and can agree with that, after you get so big your gonna need need a bigger match to set off that match book.

10-09-2009, 10:59 AM	#1 (permalink)
MagicJuice PM Newbie Join Date: Sep 2009 Posts: 6 My Mood:	SuperHead Twin Spark Hallo everyone, my name is Alex and im from Greece,from the island of Rhodes.I have a few Honda Monkey's too(3 x 1994 models) and they have always been tuned since the first day i bought them.A month ago i desided to tune one of them everything from the begining and now i have a full complete Takegawa engine.I dont know if i mistake buying the Twin Spark Head but since it was a newer version of the super head i thought it would be better.The problem im facing is with the two igniyion coils and the 1-2 cable adaptor.Everything seems to be look ok BUT its not.The sparks ARE NOT working both together and its not a broblem i only have.I tested in 2 other Monkey's i have and its the same.After many hours of searching i realised that its the problem starts from the rotor to the CDI and the coils.Thats why takagawa gives a special rotor with two coils directly (without cdi box).The question i have : Is it possible i'll chamge my electrical system and make it work like the Takegawa rotor,or anyhow make work the coils All The Time Together ? Thanks and nice to meet you all.

10-09-2009, 11:11 AM	#2 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 10,987 My Mood:	Re: SuperHead Twin Spark Streetbike dual coil? __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

10-10-2009, 07:00 AM	#10 (permalink)
Adam z50+R 2nd Gear Member Join Date: Sep 2008 Location: England Posts: 297 My Mood:	Re: SuperHead Twin Spark hi i run a 124cc twinspark +R motor in my modded z50r, and was pondering the similar thought,, i am using currently a kitaco super coil on my regular plug and a stock crf50 coil for the sub-plug ( lol ) but i tried to ensure the ht leads were the same size although in the world of cars ,,alfa-romeo twinsparks fire with slightly different timing? i've owned the twinspark+R nearly 3 years now and it works great, if anything far too much power for off-road, i may decrease its capacity for the uk 88cc minibike masters next yr the said benefits of twinspark;; from takegawa as both the single c.d.i and twin ignition coil are used, a sub plug has been added to the existing superhead+R. thus this kit helps burn the unburned gas at the opposite side of the original plug, almost complete combustion can be realized and the engine can be more powerful at any level of revolutions, especially power characteristics at the high-rotary area has improved

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