EC250 2T Dying after starting

[GGRide]

Howdy,
I have a Gas Gas EC 250 from 2000~5 in 2T, and I have some problems with it.

It starts very easily, even if I leave it for 1 year, I just have to remove the spark plug, wipe it a little and hit the pedal 2-3 times and it starts. But if I drive it for some time, 15-30 min, it dies suddenly *or stops accelerating* and doesn't start again, and if it starts, it starts very hard (40-50 pedals).

I once had problems with the Coil, a screw came loose and after I tightened it it went ok.
I don't remember that well, but it seems that the spark was weak.

Could the Coil fail like that? I'm thinking of buying an original one and trying it on.

Or should it be the carburetor? It has a Keihin carburetor, and as far as I know, those are quite good and don't break down like that.

[Anders]

sounds like it get problems when hot. My bet would be on the stator, or at least the ignition pickup.

The coil may also fail, but the stator is closer to the heat source.

How does the coil's earth connection on rad frame look ? Rusty?

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[GGRide]

I left a link with pictures,and the wiring it's very bad,I want to re-wire some connections with the same color,because everything has another color and it's not so "waterproof".

IMGUR
And I don't think I know where the earth is,I think it's that wire with the coil.

Because I can't find a Manual online,i'm not really sure what year the bike is,but I really want to make it again like new,even if it drinks gasoline like us drinking water

* VTREC250001000811* A 1006 - Here is the VIN,if you can tell,I don't know how to decode it

[(F5)]

I'm hearing stator. Just found the receipt for mine last week. It's not uncommon for an older bike, same part used on ktm of era. Plenty aftermarket available online.

[Anders]

Originally Posted by GGRide

I left a link with pictures,and the wiring it's very bad,I want to re-wire some connections with the same color,because everything has another color and it's not so "waterproof".

IMGUR
And I don't think I know where the earth is,I think it's that wire with the coil.

Because I can't find a Manual online,i'm not really sure what year the bike is,but I really want to make it again like new,even if it drinks gasoline like us drinking water

* VTREC250001000811* A 1006 - Here is the VIN,if you can tell,I don't know how to decode it

Sorry, I cannot decode the VIN, but others here might. If you show us a picture of the bike we should be able to tell you the approx model year.

The coil is earthed through it's screws. Please check that the mounting areas on the frame (where the coil is clamped to the frame via the screws) are free of rust and seem to be a good contact point.

[GGRide]

Hi,
IMGUR

So thats the bike,I think it's a 2001.

And the Earthed screw you said marked with red,that's directly put on the coil with earth touching the coil. But that's like that for long a time,before me having problems with it,and if you can see,the screw it's new,cause i've put new screws at some point.

[(F5)]

If you look at your rims they will have a date code on them. You would expect many 2001s to have been built in 2000 or 2001.