Carb

[Saulenas]

Hi, i just put a little setup. I have a problem with a carb. it isn't a vacuum and a fuel don't get a carb. After it I put my hand on the hole (before it i remove air filter). And when my starter goes work the fuel completely get a carb. But when the fuel a burn no more fuel get a carb. is it true, that here isn't vacuum?
Here is some photos how i install my carb.



A light blue and blue goes anywhere. Green goes to another side ,where it connect to another connector(100% like this). Brown goes to

after it goes to oil.



and here how install red and yellow. in the red is fuel.

where is problem??

 

[2door]

Sorry but I doubt that anyone here is going to be able to help you.
This is a forum devoted to motorized bicycles, not motorcycles.
You'll need to find a forum that addresses your motorcycle. What brand is it, model?
Tom

 

[Tohri]

That looks like a Dellorto carb. If I understand correctly, What you're saying is that you try and start your bike with your hand over the air intake and you'll get fuel in the carburator's bowl, and it will run after that, but only until the bowl empties.

The first thing I would check is the float valve, and after that, make sure the fuel is headed into the port that encounters the float valve.

Besides that, welcome to our forum. How's the weather in Latvia?