EC300 2010 lights and kill switch

hereddd

New member
Hello everyone, I’ve got an Ec300 2010 and since I got it the lights and the killswitch weren t wired to anything.. I would really need some help since the diagrams that i found aren’t really clear and I don t know where to start. Thanks in advance!
 
Hello everyone, I’ve got an Ec300 2010 and since I got it the lights and the killswitch weren t wired to anything.. I would really need some help since the diagrams that i found aren’t really clear and I don t know where to start. Thanks in advance!
Since it is a 2010 I presume it has no e-start and no battery?
Disclaimer: I have no 2010 model to check on, everything I say is from memory only.
@Neil E. is your man when it comes to electrical issues.

Lights:
Older bikes without battery uses AC for lights. There should be an AC regulator located close to the ignition coil. It is a black small unit with only two wires (if memory serves me right). One is yellow and is coming from the stator. The other is the regulated AC, around 12VAC. If you have a multimeter handy, it is easily measured.
From there, you can follow the wires and see where they go.
Do you plan a full light setup with tail, brake light and full and dipped beam?
Or is this just an offroad bike where you need a headlight? If so, just use a switch and connect from the regulator directly to the light and from the light to ground.

Kill:
The kill switch is usually wired to ground on one side. Depending on how much is still there from your OEM harness, you can wire it into the harness in the headlight area, or directly to ground. The other end is usually connected to the signal coming from the pickup, if I remember correctly.
 
Since it is a 2010 I presume it has no e-start and no battery?
Disclaimer: I have no 2010 model to check on, everything I say is from memory only.
@Neil E. is your man when it comes to electrical issues.

Lights:
Older bikes without battery uses AC for lights. There should be an AC regulator located close to the ignition coil. It is a black small unit with only two wires (if memory serves me right). One is yellow and is coming from the stator. The other is the regulated AC, around 12VAC. If you have a multimeter handy, it is easily measured.
From there, you can follow the wires and see where they go.
Do you plan a full light setup with tail, brake light and full and dipped beam?
Or is this just an offroad bike where you need a headlight? If so, just use a switch and connect from the regulator directly to the light and from the light to ground.

Kill:
The kill switch is usually wired to ground on one side. Depending on how much is still there from your OEM harness, you can wire it into the harness in the headlight area, or directly to ground. The other end is usually connected to the signal coming from the pickup, if I remember correctly.
Yes, I just want the headight because I use it for offroad only, the problem is i don t have the original harness and the regulator next to the coil, I ve got a bigger regulator under the seat, I can t send the picture because it is too large.
 
There is a spare parts list in the resources part of this forum:
https://forum.gasgasrider.org/resources/2010-gasgas-parts-manual.22/

The regulator har part number ME25634009 and looks something like this.
1736412528670.png

The regulator under your seat, does it look similar? Is it connected to the yellow wire? If there is no voltage on the yellow wire, try disconnecting the regulator and everything else from the yellow wire and see if it then is some AC voltage there, directly from the stator. The AC voltage from the stator will increase as the revs increases. I think you may see 20 and perhaps even 30 VAC there when there is no regulator and no other load.

If you cannot measure any voltage, the stator is most likely defective.

The regulator is available from different shops online, e.g. here:
https://www.enduropuro.it/shop/en/electrical-parts/221-voltage-regolator-gasgas-97-13.html

Where are you located? In the US, Europe or elsewhere?

If the image is too large, perhaps you could try to reduce its size?
 
Unfortunately i don t have any voltage on the yellow wire.. The problem is that i tried 2 flywheel pullers M27x1.0 and none of them fit.. Any ideas how to take it out easier?
 
Last edited:
Unfortunately i don t have any voltage on the yellow wire.. The problem is that i tried 2 flywheel pullers M27x1.0 and none of them fit.. Any ideas how to take it out easier?
I don't remember exactly, but perhaps the flywheel has a left-hand thread? Its not uncommon.
I would not recommend using anything other than a proper puller with the corect threads.
 
I don't remember exactly, but perhaps the flywheel has a left-hand thread? Its not uncommon.
I would not recommend using anything other than a proper puller with the corect threads.
I read on forums that m27x1.0 is the one that should fit, and it is left hand thread
 
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