air noise when turning ignition. Gilera VX

When I used to turn my key before firing the engine, I could hear between 3-4 pump noises as if there was air filling somewhere. Now it doesn't make that sound.

I reckon it's the fuel pump. But after a twist of the revs it still starts ok.

 

1. Started to take up to 10-15 presses to start from cold.

2. Pump won't Prime at all. Gone from 3-4 pops, to 1, now none.

3. Pulled the hose off the carb. Pump pops away merrily.

4. think something in carb is blocked, but it runs fine when engine is hot so is not fuel starved when running. However when hot it still takes 1-4 tries to start.

 

Took carb off cleaned gunk out. Working.