6v to 12volt conversion

[justchilllin]

Alright well i have seen alot of information on this people saying it is so much better than a 6v no hassle with breaker points..... This sounds very interesting. But i just want to know how difficult it is to set up. I have concluded that i am going to customize my trail 70. I want to do custom paint rims tires but first i would like to take it step by step. I have already put together my wire harness lights and everything else just waiting on my ignition and battery. But i would like to put some holegen lights or hid headlight bulbs and custom turn signals but all this requires 12v lighting system.

So i just want to know were i can get this kit and what accessories am i going to need, and how difficult is it to install?

 

[makotosun]

You have a couple of options, none of them simple.

If you want to stay with a Honda motor, you need to source a 90's vintage motor which is 12 volt and CDI ignition. There are two different kits often available on Ebay to convert the older points engine to CDI and 12 volt, but I have never heard any feedback from anyone who has installed one. They run around $100 and seem to be coming from asian sellers.

The second, much easier option is to install any of the china clone motors which are 12 volt and CDI. Opinions seem to favor Lifan or Zongshen brand, but you really can't tell what you are buying online unless you get one from one of the better vendors. GPX also seems to be a well respected brand but costs several hundred more than the others. There is always the NICE motors which will get you up in the $1000 range, but seem to be worth it. If you get a motor, try to get one that comes with a harness and all the little electric bits and it will make the job a lot easier.

The benefits of the china motors are you can get them with manual clutches, 4 speeds, and larger displacement for few bucks. Downside is lack of good parts support and no service network.

It really depends a lot on your goals, and even more on your pocketbook. I am sure a lot of folks will weigh in on this thread, but there is no easy method of going 12 volt without changing out the motor unless you want to be the guinea pig on the conversion kits.

 

[honda123]

As Makotosun points out the easiest way to go is to c/o the engine to a 12V But don't worry , a lot of people on here have done it, so no problem to finding help if in need. The only limit is the all mighty $$$$$$$.

 

[justchilllin]

alright then never mind

thanx for the input guys but i think i might just leave it original for now. The only way i might change the motor is if the it magically blew up. I just thought that the procedure would be simpler. Thanks anyways guys.

 

[makotosun]

Here is a link to the CDI/12 volt converting flywheel setup for a points motor.....

http://cgi.ebay.com/ebaymotors/HOND...008QQitemZ180182491334QQrdZ1QQsspagenameZWDVW

 

[CarPhreakD]

Hey Makato-san, that was the exact stator I was looking at (actually, that was my question at the bottom of the page...)!

If your bike is like mine and has absolutely nothing i.e. no battery, signal lights, horn, or anything, then it makes your job of converting to 12V much easier because you would have to source alllll those 6V parts from somewhere anyways; why not just convert to 12V in the process? In contrast, Web LLC, a seller on eBay, has an entire electrical kit (that has the signal lights, front and rear lights, even a speedo, headlight bucket -it's red but just repaint it- and new handlebars and cables), all in one relatively inexpensive package.

I'm taking a big risk here, but I'm buying one of these rotors Makato-san pointed out, and the whole electrical kit from Web LLC. The electrical kit I'm not so worried about, but the stator I am. The seller seems very friendly and willing to help; as far as I can tell this is almost a carbon copy of the 12V rotors from late model CT70's. Only thing I'm really not sure about are the wire colours (no help from the seller there), and I'm not exactly sure what he meant by "crank arm adapter to make it longer" (since it looks like a normal flywheel cover and stator size?) but that's really the only big hurdle I have right now...

As I've said in another post, I think this is the quickest, easiest and most headache free electrical upgrade you can make, especially if you're on a university student's budget like me =)

Worst comes to worst, if the rotor doesn't work I'll resell it on eBay and try to source one from a Honda dealer or something. In any case, if it works you guys will be the first to know.

 

[makotosun]

Great! I am glad you are gonna test that converter kit! Please post your results as well as how the seller follows through.

The converter is needed to add a bit of length to the points type crankshaft so the cdi type stator and flywheel will fit. The points crank is a bit shorter than the cdi type. If it works I may need to get one, as I have a couple of 6 volt bikes I would love to convert.

I would assume the stator is simply one off of one of the many clones out there. Here is a diagram without the lighting stuff:

If you can get the green-red, the white and the yellow connected right it should be a piece of cake even without the Web LLC wiring harness.

I have one of the WebLLC harness kits and it is amazing for the price. I will be using it as a starting point on a custom build I am collecting parts for.

 

[CarPhreakD]

Thanks, that sounds easy enough. Once my new co-op workterm starts and I have a new influx of disposable income (muhahaha), I'll buy all the parts and get started.

About the Web LLC complete wiring kit... how hard is it to get everything up and running? The guy selling them (Don was his name I think) doesn't provide wiring diagrams, but says that I should just be able to lay it out on the table and get everything connected. I also asked him about whether there's a battery connector or if everything ran straight off the bike- he said the battery is only used if you've got an electric starter! Hmm, is the Web LLC kit remotely similar to a CT70 wiring layout? Are the wiring colours the same? Can I just follow an older original CT70 wiring diagram, or is it brainless enough to really just lay it out on a table and plug things together?

 

[makotosun]

The webLLC setup is simply a takoff or replacement for on of the Chinese clones of a CT70. I have not actually gotten around to laying it all out, but it makes sense, as there are plugs for all the main parts.

The neat thing about the big kit is it contains essentially everything you need to wire a bike from scratch. When you add the 12 volt, that really doesn't change much, just a need for a 12 volt regulator. But the CDI will add some additional needs for the original harness, as it was set up for points. The webllc harness has provisions for blinkers, and everthing else, so it should make the whole job pretty simple.

If you can get a wiring diagram for a 90's honda ct70, that would be the best pattern to follow. You could also use it to verify the wiring in the webllc harness. I just got the harness because I got an even better deal than the current one, and it included everthing I was going to need for my build, as it is going to be a bare frame Z50 buildup using a Lifan motor.

As far as the battery, if you are going to run lights, you should need it, as it runs everthing except the headlight on a CT. The diagram for the clone stator seems to indicate that it puts out the same way - battery output and headlight (AC) output. You probably could run everthing off of the AC power, but you will need a regulator or you will blow every bulb the first time you rev it up. The Webllc kit includes a regulator/rectifier combo unit I believe.

 

[J.o.murch]

alright then never mind

thanx for the input guys but i think i might just leave it original for now. The only way i might change the motor is if the it magically blew up. I just thought that the procedure would be simpler. Thanks anyways guys.

It has been a long time! What did you do? It’s now 2024 and I face the same issue with my 1972 Honda SS50v motorcycle j.o.

 

[airblazer]

It has been a long time! What did you do? It’s now 2024 and I face the same issue with my 1972 Honda SS50v motorcycle j.o.

The last post in this thread before yours is 15 years old. None of the members in this thread have logged in since 2018. You may want to start your own thread with your specific questions to get up-to-date responses from active members.

 

[OLD CT]

The 2024 approach would be contact xrarespares on ebay and get the 6 volt cdi conversion kit that allows for running a ct90 25/25w bulb so you can actually ride the bike at night. No more points and first kick start up is another plus.