Dual-point distributor 6V or 12V

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1poet
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Joined: Thu Jul 12, 2007 4:12 pm

Dual-point distributor 6V or 12V

#1

Post by 1poet » Mon Dec 05, 2005 7:25 pm

Was the dual-point distributor a 6v, or 12v application ? If it's a 6v, is there a way to adapt the coils and distributor to a 12v ? Thanks for the help/info.
Dan'l



RussW
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Re: Dual-point distributor 6V or 12V

#2

Post by RussW » Tue Dec 06, 2005 1:12 am

According to Clymers manual, dual points from '58-'64, all 6 volt years. Points themselves don't care if you have 6 or 12 volts, you would just need two 12 volt coils. If you are running 12 volts, though, you would have many more options in ignition systems (electronic) available to you that are much less hassle than dual points. Your call, I run 6 volt and it's points for me.

hplhd
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Re: Dual-point distributor 6V or 12V

#3

Post by hplhd » Tue Dec 06, 2005 9:45 am

on pans they were 61-64. don't know about diff model bikes. 6v of course. i just ordered a module from 45partsdepot. it will be my first time not running points. i'm curios how she works. it's for 6 or 12v and drops right in place of your points in the timer.(little more involved than that but not a big thing)

1poet
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Re: Dual-point distributor 6V or 12V

#4

Post by 1poet » Tue Dec 06, 2005 3:31 pm

Thanks guys... yeah, after I got this dual-point dist, I started looking around for coils but only found 6v. I'm thinking, "Why is '64 a 6v system, when my '54 is a 12v?" I just figured anything later than '54 would be 12v, too. So much for thinking! I like the idea of running a point system that only fires when needed, but unless I convert my whole elect system to 6v, I don't think I can run this original ignition system.
I was looking at the aftermarket electronics, but read about some problems people were having w/the Mallory's. Has anyone done a performance comparison on the diff't electronic ignitions offered by brand, Single-fire, Dual-fire, etc? I know there are a coupla posts on the subject, but haven't found anything that actually compares the brands.

RussW
Posts: 166
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2007 Kaw. Vulcan 2000
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Re: Dual-point distributor 6V or 12V

#5

Post by RussW » Tue Dec 06, 2005 7:19 pm

You could also check out this.... http://www.ebeyond2000.net/quickstart.html

kell
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Re: Dual-point distributor 6V or 12V

#6

Post by kell » Wed Dec 07, 2005 3:19 am

The wasted spark in the cylinder on the exhaust cycle uses up much less energy than the spark in the combustion cylinder does -- the fact that the medium is not under compression means there's less resistance so the exhaust spark dissipates only a fraction of the energy the goes into the spark in the cylinder under compression.
There are even some modern cars that use wasted-spark ignition, so it can't be all that bad.

1poet
Posts: 14
Joined: Thu Jul 12, 2007 4:12 pm

Re: Dual-point distributor 6V or 12V

#7

Post by 1poet » Wed Dec 07, 2005 1:57 pm

RussW,

Yes, I'm running a 12v system. So you're saying that if I just hook up two 12v coils, I should be able to run this dual point system, right? Why the heck did H-D switch it to a 6v?
As you can see, I'm no genius when it comes to most of this "finer" stuff... I just put it together the best I can and hope it works - that's why I'm always asking so many basic questions from you guys, and I'm learning as I go. Most of the time, I feel like a monkey with a wrench :-/
If this two, 12v coils thing can work, then what should I look for? I've seen ohm requirements referred in coil/electrical systems...?

RussW
Posts: 166
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2007 Kaw. Vulcan 2000
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Re: Dual-point distributor 6V or 12V

#8

Post by RussW » Wed Dec 07, 2005 2:36 pm

First, your bike has been converted to 12V by someone, all pans were stock 6V until the intro of the electric start in '65. You will need to source out 2 coils, 12V,single tower(plug wire) each, something Harley never made ( they made them in 6v.) Small round ones might mount in the stock bracket. Try a Triumph,or BMW dealer? Since I have never used 12V, I'm not sure of the OHM rating. You use different ratings depending on points or electronic ignition. For points, I think you would use a 4.5 OHM coil, some one familiar with later 12V systems should be able to verify that. As far as timing this system once you have got everything together, get an Owners Manual to show you each step.

rigidpanman
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Re: Dual-point distributor 6V or 12V

#9

Post by rigidpanman » Fri Dec 09, 2005 9:31 pm

kell,you are right,the new chrysler hemi uses wasted spark ignition

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