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12 volt conversion

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12 volt conversion

Posted by david_moore1 at February 13. 2013

Hi has anyone out there converted a Jubilee from 6 to 12volts I have decided this is the way to go so any help would be welcome (but keep it simple!) electricity and smoke are not my strong point, apologies if its going over old ground.

Cheers Dave.

Re: 12 volt conversion

Posted by colin_sharpe at February 13. 2013

On this web site go to Technical->Electrical->6v to 12v Conversion and that will take you to a nice piece on the subject by Al Oz.

Re: 12 volt conversion

Posted by david_moore1 at February 14. 2013

Hi Colin,

Thanks for the info,that will be a great help.I am new to the club so some of the web site is still a mystery to me.

Cheers Dave.

Re: 12 volt conversion

Posted by alan_osborn at June 05. 2013

Well that's sorted then! 6V to 12V and fit a Boyer ignition at the same time allows you to use the original 6 v coils. You get easier starting, less vibration, longer engine life, better lights, greater choice of lamps and batteries and still ride a Norton!

Al Oz

Re: 12 volt conversion

Posted by David Cooper at June 13. 2013

Just got my prewar 16H on the road - 6v generator and CVC to look after charging - seems OK at present.  But Al's point about bulb choice stikes a chord.  6 volt twin filament bayonet fitting headlamp bulbs seem to be in rather short supply.  Searched for ages and found one at Kempton the other day.  Will 6 volts die out very soon - when we can no longer buy bulbs?  Or is there a huge secret stash somewhere?

Re: 12 volt conversion

Posted by Gordon Johnston at June 13. 2013

Vehicle Wiring Products has a great choice of 6 and 12 volt bulbs.

Re: 12 volt conversion

Posted by colin_sharpe at June 14. 2013
Previously David Cooper wrote:

Just got my prewar 16H on the road - 6v generator and CVC to look after charging - seems OK at present.  But Al's point about bulb choice stikes a chord.  6 volt twin filament bayonet fitting headlamp bulbs seem to be in rather short supply.  Searched for ages and found one at Kempton the other day.  Will 6 volts die out very soon - when we can no longer buy bulbs?  Or is there a huge secret stash somewhere?

Now you know how it is for those of us who live in the USA.  Buying a 12v headlight bulb for Brit bikes is not easy, it usually requires going to someone who specialises in British bikes.  Not like back home where they were available from any petrol station...

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