CDI + ignition coil + AC to DC converter and Voltage regulator in a single box...

[impression]

I am thinking of making an All in One Electrical kit for these bikes

it will include the following

1. CDI + retard (on/off) and variable retard ajustments on the fly
1a. Spark strength variability ( can make hard to start bikes easier to start then turn back to normal once started)
2. Ignition coil
3. AC>DC converter
4. Voltage regulator

5. ( maybe a USB out for mp3 players or battery chargers )

this means you will have a racing cdi and good spark capability all through the rev range and retard for those steep hills where you don't want to over-rev the engine and yet also want to keep it lubricated

Another thing is that yes you will be able to use the "white wire" for your 5v to 7v Electric lights. or even a battery charger to keep a spare set of batteries charged for your existing battery operated light. I may even include a USB out port to power Ipods and other MP3 players.

Cost though will be far from cheap. a quick tally of materials is $118 AUD for all the above. and i would sell these for $140 - $150 ( It has taken some time to figure out the giant schematic for all this, and it takes a lot of time to put one of these together.)

I'll have a working prototype in 2-3 weeks max. I want to gauge interest to see if i should buy X amount of each part in each order.... and shipping to Sydney from electronic distribs is slowwwwww.....

 

[FarRider]

I am thinking of making an All in One Electrical kit for these bikes

it will include the following

1. CDI + retard (on/off) and variable retard ajustments on the fly
1a. Spark strength variability ( can make hard to start bikes easier to start then turn back to normal once started)
2. Ignition coil
3. AC>DC converter
4. Voltage regulator

5. ( maybe a USB out for mp3 players or battery chargers )

this means you will have a racing cdi and good spark capability all through the rev range and retard for those steep hills where you don't want to over-rev the engine and yet also want to keep it lubricated

Another thing is that yes you will be able to use the "white wire" for your 5v to 7v Electric lights. or even a battery charger to keep a spare set of batteries charged for your existing battery operated light. I may even include a USB out port to power Ipods and other MP3 players.

Cost though will be far from cheap. a quick tally of materials is $118 AUD for all the above. and i would sell these for $140 - $150 ( It has taken some time to figure out the giant schematic for all this, and it takes a lot of time to put one of these together.)

I'll have a working prototype in 2-3 weeks max. I want to gauge interest to see if i should buy X amount of each part in each order.... and shipping to Sydney from electronic distribs is slowwwwww.....

Id be interested in seeing and possibly buying a few... if they work.
come up with that unit for the GT5R engine and i can guaranty you at least one sale.
FR

 

[impression]

Id be interested in seeing and possibly buying a few... if they work.
come up with that unit for the GT5R engine and i can guaranty you at least one sale.
FR

could you link me the GT5R engine please.

but the kit i'm making should be universal for all the chinese 2 stroke engines that utilise the "black + blue + white" wires. for the electronics

 

[killercanuck]

The GT5R is the 'Super Rat', with the internal CDI

You might have luck with separate systems too. Like just a regulator, converter, high performance coil.

/$0.02

How are you going about retarding the ignition/spark? Could you implement changing it based on rpm? (first question that popped in my head) That would get the racers interested

 

[FarRider]

could you link me the GT5R engine please.

but the kit i'm making should be universal for all the chinese 2 stroke engines that utilise the "black + blue + white" wires. for the electronics

Sure impression, heres the link, im sure you can tell the difference between the GT5R and the regular GT engines.

StarFire instructions

The GT5R "super rat" has its CDI and coil in one unit that rides inside the over sized timing case.

I'm after a hotter spark and an adjustable advance/retard curve.

 

[impression]

The GT5R is the 'Super Rat', with the internal CDI

You might have luck with separate systems too. Like just a regulator, converter, high performance coil.

/$0.02

How are you going about retarding the ignition/spark? Could you implement changing it based on rpm? (first question that popped in my head) That would get the racers interested

I could base it off RPM, however that would mean i would have to impliment a micro controller or two which would probably blow the cost to $200
Human controlled retard is the easiest and simplest solution. It also will let you restard the engine while going down steep hills... ( which will help in keeping engine from blowing up due to over-revving )

That being said If i made a mirco controller setup for retard i would have to program it differently for each engine as each engine max's out at different RPM and depending on intake/exhaust setup the "sweet spot" for the power band is different.... So yeah Manual retard control is best

The GT5R "super rat" has its CDI and coil in one unit that rides inside the over sized timing case.

I'm after a hotter spark and an adjustable advance/retard curve.

That shouldn't be any trouble ( in regards to connecting to the GT5R)

Also spark strength will be adjustable with 2 to 3 settings ( low, medium, high ) low = easier starting, high = strongest spark for higher gapped spark plugs

retarding i'm unsure whether i'll go micro adjustments through a single "knob" turning or "stages" from super low to extreme retard through a couple toggle switches...

I believe the "switches" would be the best option as it provides a simple "switch" option when you're at the top of a hill and you don't have to keep your 2nd hand off the bandle bars for too long....

all that being said i'm just about to head off the the electronic store for some stuff... Thanks for everyone's 2cents worth. Keep the ideas coming please.

 

[soup325]

I would like to see a key barrel included, so you could lock the ignition out.

Maybe this could be an optioned product.

If your going to have switches on the handle bars for adjusting the spark advance, you might want to think about adding a horn and indicator switches as well to the same handle bar unit.

 

[FarRider]

I've been looking at model airplane ignitions,

HobbyKing Online R/C Hobby Store : 52cc Gas engine w/ CD-Ignition 3.2kw+ Overbore (USA Warehouse)

These little beauty's come with a settable retard/advance curve and a settable maximum RPM limiter BUT they require a separate 6v battery to power them.

As for on the fly adjustments, a 3 position knob might be a viable means of control, but the switch idea seems sound as well.

Since these use a remote Hall effects sensors that are much like the magnetic pick ups used for electronic bicycle speedometers, I would think it would be possible to use 3 different pick ups located on a simple bracket in the timing case and you would use the 3 position knob to change it between each sensor.
It sounds a bit over complicated, but the performance gains on our little china girls to be had from a variable ignition system cant be denied.
OF course the GT5R HAS to be different...but at least theres more room in the timing cases to play with.
I've ordered a model airplane ignition kit with extra sensors, as soon as it arrives i will begin experimentation.
FR

 

[outlawbiker]

impression, just a thought i had while reading this,if your going thru all the steps to do this,why not find a way to make a better magneto also,something that puts out more output. a nice steady 12 to 14 volts of DC would be nice.

i know they have a solution for this on ebay with the mini gen,but im just saying is maybe you could improve the whole concept and tie it in with your set up.