Author Topic: LED conversion for head lamp  (Read 699 times)

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Offline LarsS

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LED conversion for head lamp
« on: February 05, 2019, 02:03:29 AM »
Anyone with experience of a good LED-kit to fit my IT175J with 6V? 

Looking for one it would be a good thing to know the watt output of the alternator.

Thanks in advance for suggestions.

Best/Lars S
Yamaha IT 175 -83
Husqvarna 250 WR -81
Maico 250 GME -85

Offline Tigger390

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Re: LED conversion for head lamp
« Reply #1 on: February 05, 2019, 07:58:30 PM »
Try these people, I got a 6v LED stop/tail bulb and speedo bulb for my IT490.


http://www.classiccarleds.co.uk/


Hope this helps.

Nigel
2001 Suzuki DRZ400 kicker, 440 kit, ported head, high lift inlet cam, K&N, full FMF exhaust.
2008 KTM 950SMR, Akro's, X Bikes airbox mod & Air filter, tail tidy and loads of carbon.
2002 Honda VFR800 VTEC. Decat headers, K&N, PC3 with custom map and full Honda luggage.
1984 Yamaha IT490L, full DG exhaust. Currently in not so many bits!

Offline LarsS

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Re: LED conversion for head lamp
« Reply #2 on: February 13, 2019, 08:52:15 AM »
Thanks Nigel.   

I'll check it  out.

Cheers/Lars
Yamaha IT 175 -83
Husqvarna 250 WR -81
Maico 250 GME -85

Offline mikeyvet

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Re: LED conversion for head lamp
« Reply #3 on: February 13, 2019, 09:41:45 AM »
Is the headlamp an AC circuit like on my DT's?

Will an LED work with AC?

I run a LED brake/tail light on my DT200 but I run it off a DC circuit.

Offline LarsS

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Re: LED conversion for head lamp
« Reply #4 on: March 16, 2019, 09:18:37 AM »
Yes, it's an AC circuit.  Don't think LED works on AC, so it has to be rectified and I'm also considering a battery.  But the problem is to find 6v LED,  they're quite rare.
Yamaha IT 175 -83
Husqvarna 250 WR -81
Maico 250 GME -85


Offline 95naSTA

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Re: LED conversion for head lamp
« Reply #6 on: May 14, 2019, 11:50:54 AM »
If you want to run LEDs, you'll definitely need a rectifier.

Half wave rectifiers will result in less than half the voltage since it'll be the average between the positive part of the sine wave and 0 for the negative part. I tried one at idle and it was worse than stock by a large margin.

Full wave rectifiers are the way to go since they'll flip the negative part of the wave to the positive side and average closest to the peak DC voltage. The easiest thing is to go to a 12v setup. 12v full wave rectifiers are readily available for scooters. The only thing is you'll need to unhook the ground at the lighting coil and connect a wire so you have 2 leads coming from the coil. I've done this with my US spec IT175K setup and I run a traditional 12v bulb with a LED tail. This seems to work better than stock.

I loose some Watts with the conversion but I gain back enough amps with the LED tail to more than make up for it.

Offline fred99999au

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Re: LED conversion for head lamp
« Reply #7 on: May 14, 2019, 09:38:58 PM »
The D in LED is Diode. it will rectify, albeit poorly or at least not as well as a dedicated rectifier diode.