honda lighting coil?

[Swabbster]

i have a baja warrior 196cc and it has a built in lighting coil, they run the dual coils and looking up the honda part it puts out 10 amps so 10 amps equals 120 watts, and i think the headlight takes 36 watts, so that means there is a remaining 84 usable watts, am i right? i was thinking about adding a 12v cigarette lighter, i will setup a control box with a 12v voltage regulator , the bikes put out 9 volts at idle and about 16 throttled up, so i puts out enough power just an idea but i do not want to burn out the coils? it would be helpful to be able to charge a phone or something on the trail,

 

[OzFab]

, and i think the headlight takes 36 watts, so that means there is a remaining 84 usable watts, am i right?

Umm, no. Amperage & wattage are not the same

Voltage is the strength of the flow; this is somewhat constant
Amperage is the speed of the flow; this is constant until a fuse is used to limit it
Wattage is how much of the flow is needed to power an item

10 amps equals 120 watts

I'm interested to know where you heard this.

 

[gvfc2]

amps x voltage = watts. there for 10ampsx12volts=120 watts. thats where he heard it

 

[OzFab]

Ok, I got schooled. Thanks guys, I didn't know that; you learn something new every day

 

[anderkart]

i have a baja warrior 196cc and it has a built in lighting coil, they run the dual coils and looking up the honda part it puts out 10 amps so 10 amps equals 120 watts, and i think the headlight takes 36 watts, so that means there is a remaining 84 usable watts, am i right? i was thinking about adding a 12v cigarette lighter, i will setup a control box with a 12v voltage regulator , the bikes put out 9 volts at idle and about 16 throttled up, so i puts out enough power just an idea but i do not want to burn out the coils? it would be helpful to be able to charge a phone or something on the trail,

Chances are very good your clone is equipped with the (1-wire) 12-watt charging coil. If thats the case, your 36-watt light should illuminate, but prolly dimly. Connecting a cig-ligher/phone charger simultaneously with light switched on would probably just result in further discharging your phones battery...
.
You'll find pics/info to help ID. your charging coil here:--> http://www.nr-racing.com/stockparts.htm

 

[Swabbster]

so is it 50 watts or 120 watts, my iphone draws 4 watts when charging, so even if it is a 50 watt charger coil/lighting coil so the headlight takes 36 i think, and the phone takes 4 and it puts out 50, i would have 10 left over, why would that discharge the phone? id set the idle high so it puts out 12 volts at idle, im confused?????? would i have to add a switch for the headlight, mine does not have a switch it is the 2010 model

 

[devino246]

so is it 50 watts or 120 watts, my iphone draws 4 watts when charging, so even if it is a 50 watt charger coil/lighting coil so the headlight takes 36 i think, and the phone takes 4 and it puts out 50, i would have 10 left over, why would that discharge the phone? id set the idle high so it puts out 12 volts at idle, im confused?????? would i have to add a switch for the headlight, mine does not have a switch it is the 2010 model

Huh? He said it's likely a 12 watt light. Those charging coils are meant for just that, charging. They're not designed to be used with lighting.

 

[anderkart]

If your charging coil has just 1 wire exiting the engine, its either a 12 or 25 watt model.

The 50-watt (and above) honda designed systems use 2 or more charging coils, have 2 or more output wires exiting the engine, and use an externally mounted rectifier/regulator that converts ac to dc voltage. The 12 and 25-watt charge coils have DC output that dont require a rectifier.

Yes you could simply instal a toggle switch to shut off your lights, and then charge your phone with any of these charging coil models. But I would test voltage at high rpm and make sure its not exceeding 15-volts DC.

 

[Swabbster]

If your charging coil has just 1 wire exiting the engine, its either a 12 or 25 watt model.

The 50-watt (and above) honda designed systems use dual-charging cols, have 2-wires exiting the engine, and have an external rectifier/regulator that convert ac to dc voltage.

Yes you could simply instal a toggle switch to shut off your lights, and then charge your phone with any of these charging coil models. But I would test voltage at high rpm and make sure its not exceeding 15-volts DC.

is the rectifier before the connector for the headlight or after, i don't want to fry my phone, most phone chargers have a fuse that will pop rather than you phone, would i have to buy a 12 volt voltage regulator? and is one wire positive and one ground?

 

[r97]

Out of curiosity, could you not just charge your phone at home before you left? Or is it simply the novelty of being able to charge your phone that you're after?

 

[Swabbster]

more of a novelty thing, if my phone is dead and i blow a belt or something at least i can have power, i think i am going to forget about it,

 

[anderkart]

If its got a rectifier, it'd be bolted on the outside of your engine before the light-wiring conector. But i really think most any 169cc Baja product would have came with the lowest-cost charging coil they could copy from hondas designs. That would be the 12-watt charge coil, It would just have 1 output and 1 ground wire. No external rectifier needed.

The fuse in your phones charging cord would only blow in case of a true short. Fuses dont blow from high voltage, only from excessively high amperage. So if you wanna try charging your phone, just monitor voltage while plugging it in the first time and make sure it doesn't exceed 15 or so volts at max rpm.

 

[Swabbster]

mine has two wires coming out to a white connector then up to the headlight

 

[anderkart]

Yep, its got the 12 or 25 watt charging coil, prolly 12.

 

[turbojimmy]

Sorry for bringing up this old thread, but it's relevant to my question.

I want to add some low-watt (LED) lights to my kart. I have a 6.5 HP Greyhound-brand Honda clone. It has the single yellow wire that's not hooked up to anything. I get 1.5V AC out of it at idle. Is this the wire to which I would connect a rectifier for 12V lights?

I haven't taken it apart yet, but is there a spot for another coil thus doubling the output? The rectifiers on eBay have 2 inputs. I'm wondering if they'll work with just the one input I have or if I need another coil.

I have an old tractor with an electric start and headlights that I don't use anymore. It has to have a rectifier somewhere so I'll probably goof around with that. I'll also be using the tractor's battery for the lights, but I want the clone engine to charge it back up.

 

[OzFab]

It's better to reference an old thread rather than revive it...

That being said, If your engine is only a pull start (as opposed to electric start) there's a pretty good chance it won't have a charging coil &, therefore, does not have tha ability to power anything.

The yellow wire you found is probably the low oil sensor...

 

[dnuccio]

It's better to reference an old thread rather than revive it...

That being said, If your engine is only a pull start (as opposed to electric start) it won't have a charging coil &, therefore, does not have tha ability to power anything.

The yellow wire you found is probably the low oil sensor...

not completely true. i had a honda gx160 that was just pull start, and it had a charging coil under the flywheel. but in his application, i would agree there is no charging coil.

 

[OzFab]

Fair point, post edited...

 

[turbojimmy]

Thanks.

It is a pull start. Why would I get 1.5V AC at idle from that wire then?

The low-oil switch is hooked up like it should be, so that's not what it is. I'll have to trace it to see where it goes.

 

[Doc Sprocket]

It is a pull start. Why would I get 1.5V AC at idle from that wire then?

Interesting. Probably a lighting coil then. To tell the true story, run the engine up to 3600 and take a voltage read off it.