Fuel float problem

Hello,
As I wrote in the other thread, I took off the rubber Ansaugstutzen from my 1981 SR. Since that, I decided to take off the carburettor too, to see if everything was fine.
I then tried to dismantle the fuel float, but its pivot is stuck in its place! How can I take this little axle off?
Here you have a pair of pics: carburettor is standard Mikuni VM34SS fitted in Yamaha.

[Blockierte Grafik: http://img291.imageshack.us/img291/5143/vergaser01ow0.th.jpg]

[Blockierte Grafik: http://img238.imageshack.us/img238/3649/vergaser02vf3.th.jpg]

Can anybody help me?

Greetings!

Hello!
I tried to extract the axle by grabbing it with a pair of pliers (from right side), but nothing happened. I'll try by gently hitting it with nail and hammer, as you said.
Maybe a good soaking in penetrating oil could help too, as a little warm up of the part (Aluminium's dilatation coefficient is higher than Steel's one).

I'll let you know. Thanks!

Greetings

Simone

Here I am,
I tried with nail and hammer trick and fuel float pivot has finally come off! I've just put some sprays of WD40 to help it working, no heating was necessary.

Now I'm bothering with the float valve seat pulling out: I've tried with pliers again, but nothing has happen; then with a screw driven in the seat, and after half an hour of pulling I've noticed that it came off only for a pair of millimeters ... I'll keep on with that method.

Thanks again for suggestions. Greetings!

Simone

It's been hard work with the "driven screw" method, but at the end the Schwimmernadelventilsatz has come off! ...

Greetings