6 volt to 12 volt conversion need help.

[speady81304]

1974 CB125S, runs ok with 6volt setup. but I want to upgrade to 12volt so i can run a dyna IGNITION booster, and mini coil to get a very hot spark. also i need to be able to power my late modle suzuki bandit headlight, and LED tail/brake light and led turn signals.
i dont think 6volt will do it. if it does o dont know if it will burn up the charging system.

I did do some searching and found that the 1985 CB125 has 12volt system.

I think all i need is a new stator. Since im gona use an aftermarket 12 volt reg/rec and a good strong YTX9-bs battery. if i can convert over to 12 volt.
please if you know how or have done let me know.

 

[speady81304]

going to try to make a Lifan 12 volt system work. since their engine is a copy of the honda. it should work. might have to custom make brackets or something i'll findout more when i get the parts. if it works i'll post fo others to see.

 

[Scarcat]

ok.. there are three essential parts to upgrading from 6 volt to 12 volt.

1) Stator/Alternator
2) Rectifier/Regulator
3) Battery

Your stator/altenator is designed to produce 6 volts at a given amp.
To convert from 6 volts to 12, you need to either ungrade your stator/alternator, or put in a transformer. A transformer can upggrade your voltage, but will drop you amps.

Your Rectifier/Regulator is designed to give continuous current at a specific voltage. When your bike goes faster or slower, this is the part of your electrical system that will keep the current contiuous. You'll need to upgrade this part of your bike.

Most batteries are 12 volt, however, some are 6 volt. If you upgrade to a 12volt system and have a 6 volt battery, you'll need to again upgrade. There are two essential numbers for a battery: The voltage and the amps it'll produce. Thus, 12ah10 is 12 volts at 10 amps per hour. Whatever your battery is now, you'll want to upgrade your volts if necessary, but keep the amps at the same.

Just rmemeber that your entire electrical system is designed to run at a particular voltage and amp. By upgrading, you may need to upgrade a bunch of parts on your bike like flasher relays, starter relays, condensers, inigiton coils, etc. Luckily there are more 12 volt parts available then 6 volt.

More volts and less amps means more juice, less kick, which means that you're bike will run hotter, but won't juice your battery as quickly.

 

[speady81304]

im going to be using a late modle suzuki GSXR600 reg/rec. I think i can get 12v out of the stator if i get it rewound. The bettery is nothing new to me. I been around late modle sportbikes for about 5 years now. and have raced my GSXR600. well passed the ton. more like the ton .5 lol max i seen on my 02 GSXR600 was 176 mph. at pocono raceway in North east PA. the same pocono that nascar is at. anyway the battery im going to use is a YTX4L-BS. I'm going to rewire the bike with new wire and an upgrade fuse box. with mini fuses. no starter, kick only. also the only thing thats going to stay old tech is the points. I have a dyna IGN boost control (replaces the condensor for high discharge) the coil im going to use Dyna's new mini coil. for switch gear im going to use 1986 honda cb750 the starter button will be wired up for a passing lamp.

with the stator i found another person on a nother web form that took an old stator apart and found out how honda wound it. i then took that info and went one step further and found that if i rewind the stator, kinda like how honda did it but take both the day time charging set and the night time. and run them together will double the out put. witch i hope jumps it to 12 volt. if i need a transfomer then i'll look into it.

when i started with this project i was looking for something simple like take this and replace this and be done. not knowing i had to take apart my stator and rewind it. and rewire this and that. and hope it works.