1964 leader not charging

PhilRobinson
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1964 leader not charging

Postby PhilRobinson » Fri Feb 07, 2020 7:24 pm

hi could not start bike. battery flat ,charged still flat bought new battery , started went for my weekly spin noticed not charging.help please phil robinson 1964 leader

petewatts
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Re: 1964 leader not charging

Postby petewatts » Fri Feb 07, 2020 10:02 pm

Hi Phil ,are you still on 6 volt ? If so what rectifier are you using ?

JohnnyBeckett
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Re: 1964 leader not charging

Postby JohnnyBeckett » Fri Feb 07, 2020 11:09 pm

it is the rectifier i would check first and the wiring and test the rectifier

PhilRobinson
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Re: 1964 leader not charging

Postby PhilRobinson » Sat Feb 08, 2020 11:28 am

hi thanks for getting back .forgot to mention its 12 volt electronic ign . was working fine ,starts ok but afier a run apply foot or handbrake it cuts out very worrying regards phil robinson

will_curry
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Re: 1964 leader not charging

Postby will_curry » Sat Feb 08, 2020 1:55 pm

More questions:

- What ignition system do you have?

- How was the charging system converted to 12volts?

- Has the charging system ever charged at 12 volts? That is was it working and
it's gone wrong or has it never charged.

One quick thought is that there may be a short-circuit in the brakelight wiring. Is there
a fuse in the wiring to the battery? If there isn't there certainly should be.

PhilRobinson
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Re: 1964 leader not charging

Postby PhilRobinson » Sat Feb 08, 2020 3:04 pm

hi just checked electronic reads TRUE_FIRE arrow/leader, its pos earth regret as i live on the west coast of wales b/band very poor unable to put pictures phil robinson

PhilRobinson
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Re: 1964 leader not charging

Postby PhilRobinson » Sat Feb 08, 2020 5:06 pm

hi yes it was charging,and running fine then on one trip out came up to a junction applyed footbrake engine cutout started ok ride back home, same thing removed battery tried to charge no luck. bought new battery . still does not charge phil robinson

will_curry
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Re: 1964 leader not charging

Postby will_curry » Sat Feb 08, 2020 6:12 pm

In the original setup the alternator on the end of the crank on the kickstart
side of the engine supplies alternating current to a rectifier which converts
the alternating current to direct current to charge the battery and power the
ignition and lights. To regulate the voltage only one pair of the three pairs
of coils in the alternator are working until the headlight is turned on - this
then switches in the other two pairs. The weakness in this system was the rectifier.
I remember them costing 17 shillings or so and being fairly easy to replace.

The above system isn't capable of supplying a modern 12v system with decent lights.
Both the rectifier and alternator need replacing with uprated modern equivalents.

How you test the modern equipment does very much depends on what you've got fitted
but you will need a decent multimeter to do it.

All I can suggest at the moment is to inspect the wiring in the charging cicuit
looking for broken or shorted wires.

petewatts
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Re: 1964 leader not charging

Postby petewatts » Sat Feb 08, 2020 11:02 pm

The True fire ignition is made by Pazon and is a well respected unit . If running a 6 volt system you can get away with just using a rectifier (just as it was originally) but preferably a solid state type . If its 12 volt you need some sort of regulator ( most folk use a combined regulator /rectifier unit . How many wires have you got coming from your alternator ?

PhilRobinson
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Re: 1964 leader not charging

Postby PhilRobinson » Sun Feb 09, 2020 8:35 pm

thanks for all the info regret fowl weather over here all most got flooded out saved by home made sluce gate .start looking when weather gets better thank you all phil robinson


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