The bolt you were talking about is indeed the correct one, but the head size of it is 7/16". It is not the bolt on the fuel tank, it is the bolt on the left side of the pull start. The head size of the bolt in the middle of the fuel tank is 1/2".

The bolt holding the automatic choke cover on has a 1/4" head.

Also I have checked the flatness of the fuel tank and carb with the edge of a ruler and it looks fine.

Thank you in advance

Last edited by Lachiepower0402; 18/11/14 02:31 AM.