Dear Dave,
Ever since my Dingo has returned from ys service it has been running fine. However, theres still one problem that i am not able to solve. When i have to start the engine i have to put some fuel in the carburetor to help it fire. If i dont put any fuel in the carburetor the engine does not suck fuel on its own no matter how much i run it with the starter. Even if i try to prime the engine it will not suck any fuel. The only way is putting fuel in the carburetor and once it fires up then it starts to suck fuel on its own. Any idea what might be wrong?

Try pulling the fuel line off the fitting where it goes into the cylinder head and running the engine with the starter. Be sure to do this with the throttle all the open.
Let me know what happens.

Dear dave,
before i could try this i made a big blunder. I was trying to adjust the valves and i broke one of the screws while tightening it. In Any case im sending you the engine again so that you can have a look at the above mentioned problem and also replace the screw and do a complete service. Thnx

OK, sorry for the problem.