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Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc.


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Old 11-10-2021, 02:32 PM
JAD JAD is offline
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Default Can anyone explain the electrics on my 2007 EC250? (UK)

2007 EC 250 in the UK

I am hesitating to ask this because electricity confuses me on a good day!

I have always had bikes with a battery before but this bike does not. Obviously no electric start and only basic lights (headlight, tail light and stop light). No speedo and the horn runs off its own little battery (looks like one off a bicycle)

The headlight dipped beam works (standard incandescent bulb) but nothing else.

So...

Is it a completely AC system? How do you get things like 12V horn, phone charger, and maybe LED lights to work?

Is there any way to check the wiring and voltages without having it running all the time...

Sincere apologies if (as I suspect) these are dumb questions...


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Old 11-10-2021, 04:52 PM
mekket mekket is offline
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You need a regulator/rectifier to turn the AC voltage from your stator to DC voltage(12). Are you sure you don't already have one? You could also measure the voltage at your headlight for example to see if it is 12v DC or if it is AC voltage. If it is 12v DC you already have a regulator/rectifier.
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Old 11-10-2021, 04:58 PM
JAD JAD is offline
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Thanks... I shall dig out the multimeter in the morning..
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Old 11-10-2021, 10:14 PM
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Gasser Nate Gasser Nate is offline
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The system is entirely Ac except for the horn. They usually have a horn rectifier which converts the ac to dc.
There is a small zener diode which acts as a regulator for the ac voltage and ensures it does not exceed around 14-15 volts.
Most dirt bike run on ac lighting. It ends up looking like square wave Ac voltage which the LED light do not care about and will run fine on.
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Old 11-11-2021, 03:41 AM
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Thanks all, I have been investigating and the low beam, led tail light and brake lights work fine until I use the left handlebar switch to select high beam. High beam then works fine but the tail light turns off. Which is a novelty!

I am guessing that the tail light is powered from the low beam circuit and consequently turns off when high beam is selected. I shall investigate some more...

ps...what does the red switch on the right handlebar do? (all marking have rubbed off the switches) . I have traced the wires and they both go to what looks like a CDI unit under the seat.
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Old 11-11-2021, 04:58 AM
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Quote:
Originally Posted by JAD View Post
ps...what does the red switch on the right handlebar do? (all marking have rubbed off the switches) . I have traced the wires and they both go to what looks like a CDI unit under the seat.
Most likely the map switch. Does it look like this one (on the cooler hose) ?
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2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper
2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper
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Old 11-11-2021, 05:44 AM
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Yes..same switch as that so I guess I have a map switch. It does not seem to do much mind?
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Old 11-11-2021, 06:51 AM
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Yes..same switch as that so I guess I have a map switch. It does not seem to do much mind?
No, it all depends on your jetting (in my experience). When I ran the Keihin (worn carb on my 06 model) it didn't really do much. But with the (properly jetted) Lectron, I noticed a difference. It will also depend on your squish band / head modifications, I presume.

On my '15 EC200, I run it in the "sun" mode all the time, an the 200 motor has just about perfect power for my needs.
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"So you know, that you're over the hill when your mind makes a promise that your body can't fill" (Little Feat: Old Folks Boogie)

2015 EC200 Racing: TE bars, Rekluse Core Exp 3.0, 38mm Lectron & Ohlins S3 steering damper
2006 EC200: 2011 plastics, Rekluse Z-Start, revalved KYB forks & Scotts steering damper
1998 Bimota Supermono
1986 Duc Mille S2
1975 Guzzi sidecar hack
1961 Morini Corsaro 125
etc
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Old 11-11-2021, 12:11 PM
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It just retards ignition about 4 degrees. In the mud you will notice it is less likely to spin up. But it takes the bark out of it. Assuming it is still connected properly.
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Old 11-11-2021, 12:28 PM
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Thanks guys.
I cannot fathom out the lighting issue.
When the switch next to the left grip (looks exactly the same as the map switch) is on low beam all is well. Dipped headlight and tail/brake light all work.
If I select high beam with the same left switch the tail/brake light goes out.
Anyone have any thoughts...? The wiring diagram is not helping.


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