View Full Version : Cl100 6v to 12v Conversion

04-18-2016, 3:16 PM
Hi I have read a thread that I found here (http://www.chopcult.com/forum/showthread.php?t=33361). Correct my if I'm wrong but this should work on a 71 Honda CL100 correct? If it does my next question would be what rectifier would I need to use? The link in the other thread does not work, are there any specific specs that the rectifier has to meet?

Thanks for any help,

04-22-2016, 12:22 AM
Does your rectifier look like the one on the CB100e? I think the rectifiers that I linked should work fine. I tried the radio shack one and this one from amazon and get the same output.
Here is the one that I bought from Amazon

Here is the one I bought from Radio Shack

As I stated in the other post. Since I dont have the 12v battery I am unsure if its going to work or not. The bike I am trying this on is a 76 MT250. Here's the weird thing, I measured between 25-48 volts dc with both Rectifiers. I got curious so I hooked the old one back up and it measured the same voltage DC as the other rectifiers. I am not saying this will be the case for you, but what I do not know is if the battery acts as the regulator. As soon as I hook up the 6v battery the voltage drops to about 8 volts dc.

In the other post, the guy who recommended replacement did say "Power source: You can use a battery or a large capacitor make sure the capacitor you use is unidirectional meaning the voltage only exits out of one post not both." Hopefully someone can help us out.

04-22-2016, 12:54 AM
This might help as well. I was reading a post on the hondatwins forums and found this
kohler part number is 25-755-03

This one has a regulator built in that keeps it at about 14.7 volts. You can find them just about anywhere. I am going to be trying that one. I am not sure about the rules about linking to other forums so do a google search on "hondatwins cheap regulator/rectifier upgrade!".

05-20-2016, 1:48 AM
I finally got the Kohler rectifier and put it on the bike I can tell you that at least for me it is working fine. I made a video showing how much its putting out to the battery. Here is a link to the video https://youtu.be/Ig9OFFLRdqA

The Kohler unit has 3 prongs, 2 for AC and 1 for the DC out(to battery/capacitor). In my case I chopped the wiring to the old Rectifier and put it on the new one. The only thing I had to do is connect the green wire(ground) to the frame. The 2 wires coming from the Stator are Yellow and Pink, those go to the AC on the Rectifier. The DC out goes connected to the Red wire to the Battery. Hope this helps someone. Good Luck.