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Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc. |
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Thread Tools | Display Modes |
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#1
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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... |
#2
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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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#3
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Thanks... I shall dig out the multimeter in the morning..
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Retired EC 250 (2007) UK |
#4
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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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Back on a gassy! 2018 EC300! 🤘 Txt 280 07 to make me feel like a gumby again |
#5
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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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Retired EC 250 (2007) UK |
#6
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Quote:
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Anders "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 |
#7
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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. Sent from my LLD-L31 using Tapatalk
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Retired EC 250 (2007) UK |
#8
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Solved... when the high beam +ve connector is removed from the bulb all is good. I think the left handlebar switch is just a single pole lights on/off and it was never designed for a high/low beam option. Hence when I connected the black lead to the bulb high beam the switch earthed out the tail lights..
I shall go the AC to DC route as described in the sticky.. Thanks all.
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Retired EC 250 (2007) UK |
#9
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Hello,
The type of switch that you are using is the wrong type of switch , it is acting as an on - off switch . Have a look on ebay for universal motorcycle light switch and wire your electrics to one . |
#10
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2007 EC250 with just basic lights - (low beam headlight, tail and stop light only)
Ok, after much study and reading I have come to the conclusion that my brain is not wired up to understand electrickery! The sticky post above (AC to DC) refers to the main earth, I have 3 in the same location by the ac regulator and it seems that all of the lighting earths need to be removed ...etc... I am confused... So, I have two wires (one yellow and one white) which appear to come from the stator. The white wire goes nowhere (not connected to anything) and is just taped to the frame at the left side of the tank. The yellow wire has a spade connector and that appears to go to the ac regulator near the coil. Both these wires are live when the engine is running. Is the following sensible /possible? Leave the existing system exactly how it is but disconnect all the lights (and brake switch) from any earths to the frame. Use the redundant white wire from the stator to power a new reg /rec earthed to the frame with the correct wire. I assume the reg rec needs to be earthed to the frame with its wire NOT bolted to the frame) Will I now have a new source of 12 V DC from the reg rec which I can use for lights and other accessories? I appreciate that everything utilising this new 12V DC will need to be isolated from the frame. (I hope the brake switch will not cause an issue?) Essentially I will have added a new 12V DC system which is isolated from the existing circuits and with its own earth/neg to a battery - all sourced from the white wire under the tank. Is it vital to also have a battery on this new 12V DC system or will it work without? Just smiling, as I suspect this will be jibberish to those electrical wizards out there... apologies!
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Retired EC 250 (2007) UK |
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