Author Topic: KLX 250 Lighting coil - Is there a way to upgrade it?  (Read 431 times)

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Offline farmer58za

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KLX 250 Lighting coil - Is there a way to upgrade it?
« on: August 25, 2017, 02:39:46 AM »
There is only one 6V lighting coil on the '79 KLX. Is there a way to uprate the coil to a higher wattage or introduce a 2nd winding on the same coil?
Thanks
David
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Offline Colin Jay

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #1 on: August 25, 2017, 12:40:19 PM »
Give Steve at Betta Bikes (http://bettabikes.com/) a call, he has been doing the electrical upgrades for the bikes used for reliability trials here in SA for a long time, and I would dare to say that he has probably done 12v upgrades for the KLX.
Why do things the easy way, when with a bit of effort you can really make it difficult for yourself!!

Offline TT5 Matt

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #2 on: August 27, 2017, 01:13:37 AM »
I remember a Vic coil winder on the IT Yamaha forum saying to go from 6v to 12v was just a matter of doubling the turns count and halveing the wire size of the old 6v lighting coil.stores like jaycar carry a lot of wire sizes or try motor rewinders.although abit messy a brush of adaldite between layers as your winding the wire on helps with vibration rub between the turns of wire and increases the life of the coil as well

Offline grouty

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #3 on: August 29, 2017, 07:19:59 AM »
The later KL250 trail bikes were 12 volt. The coils are a direct swap with the back plate. Some re-wiring may be required, and a new 12 volt battery. Not sure if they were about in Oz, but we had them here in the UK. I've not bothered with mine as I have little intention of using it in the dark. Those few occasions I have, it's been a lot of fun with a 6 volt glow worm  ;)
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Offline farmer58za

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #4 on: September 03, 2017, 06:52:11 AM »
I looked at a pic of the 1979/1980 KL 250 coil and it has 2 windings which is much better, even with 6V. That would mean if it fitted, I could use one winding for the brake light only and forget about a battery.

However, that KL coil looks a lot fatter than the KLX one. Grouty, can you confirm that it's a straight bolt-in swop?

Regards
David

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Offline grouty

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #5 on: October 16, 2017, 09:31:24 PM »
Just had another look, and I was wrong. It is the KZ250 road bike that has the 12 volt system. I think I have one of these engines somewhere. If I can find it I will pull the flywheel cover and see.
It will need the CDI box and associated ignition parts to work. The engine cases are the same in that area, although they have a large lump at the front for the leccy start. No ... before you ask .... this engine won't fit in the KLX frame.
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Offline LWC82PE

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #6 on: October 16, 2017, 10:26:04 PM »
Like Colin says, worthwhile contacting Betta Bikes. I have an article on rewinding your own coils that may be of interest to you. Its from 1977 and uses a PE250 as the example but the basic principles could be applied to others.

Power Dynamo do a system for the KL. Link to product info did not work for me so you may have to send them an email

http://www.powerdynamo.biz/deu/systems/lists/kawasaki.php
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)

Offline grouty

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Re: KLX 250 Lighting coil - Is there a way to upgrade it?
« Reply #7 on: October 17, 2017, 06:48:29 PM »
The kit (78 57 999 00) for the KL250 (1981) is listed as 'No longer available'. Has been for a while.
Shame, as that would have solved every ones problem.
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