12 volt conversion

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12 volt conversion

Post  mickey c on Sat Jan 03, 2015 1:39 pm

Hi all
I'm doing some planning / window shopping & am looking for the 'off the shelf' 12 volt conversion but all I can find is variatronic at about £300!!
Is there another option available please? That's well outside my budget!
Thanks
Mike

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Re: 12 volt conversion

Post  Thackers on Sat Jan 03, 2015 3:21 pm

I think that's the only one "off the shelf" you can buy. The alternative, as usual is quite a long road to go down. Involving a lightened flywheel machined down so it goes in the mag housing which then has to have a luna boss fitted, the stator has to be re-done to take the 12v gubbins usually from a PX donor then fitted to a luna stator back plate then the usual 12v regulator and cdi.
I think you could do it also with a Sunny stator but you must get the corresponding flywheel, I think I read somewhere Scooter Resto are out of stock on these, but check.
I know there was a shortcut on the larger series to get 12v lights, which I think was a simple upgrade by just using a 12v regulator on a 6v system, but I'm again not 100% on that
I'm pretty sure there's plenty on this subject within the pages on this forum, use the site search option, it might bring the topic up
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12 volt kit

Post  mickey c on Sat Jan 03, 2015 5:50 pm

Thanks for the reply
& ouch this looks like paying the same for an extra 6 volts as I paid for the vega.
I did have a search & found out (a bit ) about the modifying lightened flywheels. & home brewed stator; that sounds really tricky.
If the only off the shelf option is variatronic , I might go down the keep orignal electrics road !

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Re: 12 volt conversion

Post  Scooter Paul on Sun Jan 04, 2015 2:49 am

I've always found the original electrics, in fine fettle, aren't too bad at all.

Paul
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Re: 12 volt conversion

Post  Thackers on Sun Jan 04, 2015 4:07 am

Yes, like Paul says the original system is ok. You could always fit a new set of points and change the bulbs to 6v LED.
I have just checked Scooter Restorations and they are showing the Sunny items in stock, so food for thought.
I did my 12v conversion because the rear light was poor (I got stopped by the police) and getting the right bulbs was a pain plus with the 135cc I thought vibration and points were not going to get along together
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Re: 12 volt conversion

Post  mickey c on Mon Jan 05, 2015 1:02 pm

Thanks guys
I am doing at least 125 conversion & imagine the starstream barrel will need a re bore so think I might be equally shaky!
I can't remember the last time I set points up but will do so rather than spend £300 on electronic unit.
The food for thought with sunny stator intrigues me! Would the sunny stator fit on starstream crank? I would presume so but any info regarding this will be much appreciated. I'll have a look now & let you know what transpires.

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Re: 12 volt conversion

Post  wack 63 on Fri Jan 09, 2015 2:04 pm

As Dave has said, there is an easy 12v conversion using your existing stator which involves joining some of your stators wires together http://www.ilambretta.co.uk/12v.html     and using a regulator.You can fit GP double sprung points(if not already fitted) which should suffice.Other than that it's the conversion using the AF lightened flywheel and a vespa stator but you have to sacrifice your Vega/J flywheel and stator plate,then find somewhere to hide the regulator and CDI unless you don't mind them on show.BGM do a smaller reg or use a Varitronic/Honda one.Not sure if it has been uprated for the Luna Line but the varitronic has poor lights at lower revs compared to a Vespa system.

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