Magneto only/No Lights

Help with wiring

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ravaged
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Re: Magneto only/No Lights

#16

Post by ravaged » Tue May 28, 2019 12:31 am

Think I got it figured out....wiring diagram was correct. Just had faulty grounds at both the tail and head light. Thanks all for the help!!



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Re: Magneto only/No Lights

#17

Post by Andygears » Thu May 30, 2019 12:43 am

So with no battery and no capacitor, what keeps the voltage from overjucing when the motor gets revved? Are the points in the regulator vibrating to reduce voltage?

I'm trying to understand, cause it isn't the way I thought, maybe 6 volt is more forgiving.

Andygears

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Re: Magneto only/No Lights

#18

Post by ravaged » Thu May 30, 2019 8:57 pm

ravaged wrote:
Sun May 26, 2019 3:03 pm
RUBONE wrote:
Sun May 26, 2019 1:57 pm
If you are running a wire from the headlight to the taillight it must be on the same terminal (terminal acting as a junction) and not another terminal on the headlight. It won't feed through the element. Is the generator good? What regulator are you using ?
ahh...so currently I have that wire on the spare terminal on the headlight. So you are saying put it on the same terminal as the wire going to b+, correct? I’ll give that a try.
I also wanted to point out for those that see this later, RUBONE was correct in that you need to use the same terminal as the junction as the other terminal wont feed through the element. The diagram could be misleading that it would work that way but it doesn't. Thanks RUBONE.

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Re: Magneto only/No Lights

#19

Post by Andygears » Thu May 30, 2019 9:18 pm

So where does the extra juice go when the motor is revved? If the voltage regulator points open, there is no battery or capacitor to keep the lights ON. If the reg. points stay closed, the over voltage will make the lights burn brighter, for a little while and then cook the elements. If they vibrate, many times a second, the reg. will burn out quickly.

That's how I understand it, help me in my ignorance!

Andygears

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Re: Magneto only/No Lights

#20

Post by PanPal » Thu May 30, 2019 11:09 pm

Wondering the same as Andy. Dont you still need at least a capacitor?

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Re: Magneto only/No Lights

#21

Post by RUBONE » Fri May 31, 2019 1:16 am

Where it generally goes is blowing the filaments in the bulbs! :lol:

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Re: Magneto only/No Lights

#22

Post by ravaged » Fri May 31, 2019 3:00 pm

Yeah, that's what I have read as well....I've got a condenser to go on it, I just wanted to see how it all worked without one for now but it sounds like best practice would be to install one off the hot terminal on the relay and ensure the condenser is grounded well.

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Re: Magneto only/No Lights

#23

Post by ravaged » Thu Jun 13, 2019 3:22 am

Hey guys...I’m running one of those 6v 2 brush Cyclery 32e look a like generators and unfortunately it doesn’t have a tag on it so I’m not sure which terminal is A and which is F. I’ve looked at lots pictures of these generators and have found that depending on the picture the A terminal can be found on either side. I’ve also read that some of these reproduction generators can have their terminal swapped from the stock locations. My question is how do I accurately tell which terminal is A and which is F? Thanks

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Re: Magneto only/No Lights

#24

Post by RooDog » Thu Jun 13, 2019 12:53 pm

This is an easy one. If your genny's case terminals are unmarked you will need to open up the genny and remove either the dust cover band or the outboard end cap. Do this on the bench off the bike. And carefuller 'cause you'll have to deal with the brushes springing out of their holders, but a little patience will overcome this, OK?

The way to tell for sure is to look at the internals wires going to the terminal screw posts.

One post will go only to the a field coil. It is the "F" terminal. Mark your case with an "F", permanently, like with a metal letter stamp. Do it nicely in a workman like manner.

The other post will be wired to a field coil, but also go to one of the brush holders, and it is the Armature connection. Mark it "A".

The MoCo has had several different two brush genny configurations over the years with the post marked differently so this is not unusual.
Best Wishes....RooDog....

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Re: Magneto only/No Lights

#25

Post by RUBONE » Thu Jun 13, 2019 3:55 pm

The info is in the documentation section.

http://www.hydra-glide.net/joomla/index ... fan-cooled

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Re: Magneto only/No Lights

#26

Post by ravaged » Fri Jun 14, 2019 12:11 am

Thanks guys...all issues are figured out and the ol girl is ready for the road. Appreciate all the help!

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