Update: So last night I decided to take off the fuel tank, fuel line and strip the carb and make sure everthing is in working order. After completely dismantling everything that touches fuel I still could't find anything wrong. The only thing that I did not take of was the fuel pump, so i figure what the hell lets check out the brand new fuel pump, its only 4 days old i'm mean whats the odds that the fuel pump can be broken.

As I pull of the pump I hear a piece of metal falling on the ground, that was the first indication that this pump went to fuelpump heaven, after completly removing the pump I see the cam follower thingy broke off

So needless to say I'm getting an electrical pump today and hoping that it will solve the problem.

Thanks for all the advise and if I don't bump this thread again you know its working

Pull the carb apart and check the needle and seat. . .

On the side of the road when it dies, give the carb a sharp whack, it may help if the needle is binding.

Yes, it is possible for the float to get stuck. But first do a fuel-pump test. If you prepare, you can do this on the side of the road when the problem occurs. See: Carb adjustment, troubleshooting, rebuild and inspection. You basically just need a screwdriver (to loosen the hose) a small container to measure the fuel and a watch to time it.

thanks for all the advice guys and sorry for the late reply.

I've made sure its not a vacuum in the fueltank thats causing all the problems ( had that problem before aswell )

Anyways so I replaced the pump and fuelfilter during the weekend and bam everything is running smoothly for the entire weekend until this morning on my way to work she stalls again. So I take another look under the bonnet and the first thing I see is my fuelfilter completly full of fuel weird, I take a look at the the float level and no fuel

So tonight i'll take of the fuel line off and put a couple of bars of pressure through it and see wat gets shot out the other end.
If thats not the problem is it possible for the float to get stuck at the top?

On the 1200's there is a vent valve located on the firwall, if this valve does not vent properly like it is sopposed to then the fuel tank cannot vent . It will run for for just a bit ,then die . To test this theory drive it till it dies, open the hood then undo the inlet side of the fuel filter , if it's not venting you will hear the suction when you pull off the fuel line .That means the valve is not operating properly.

Had the exact same problem with a van I once had. It was rust in the tank that would cause the small fuel filter to clog. It would stop, then wait a while and it would run.

I had a smilar problem with my 1200 that I thought was the fuel pump. I changed the fuel filter, replaced the fuel pump, and it would still die.

The problem was a clog in the fuel line between the tank and the filter. I undid the line from both ends and inserted my air line in there and blew about 120 psi through the line. Some gunk came out the other end, and it has been working fine since then.

sounds like either the vacuum lock or maybe some crap plugs up the fuel pickup when the tank gets low.

sounds like vapour lock sort of but to have it happen prior to the fuel filter is weird, ive only ever had it happen before the carb in the fuel rail.

your fuel tank is not venting, causing a vacume lock. you stop for a wile,vacume catches up away you go. next time loosen petrol cap?

I've gone through a couple of tanks and its the same petrol station i've been using for the last year or 2