Hi i am very very new to R/C and i am currently trying to put togther a trainer plane ( Start 40 Evo 2 ) however the instructions that came with it are absolutely shocking.

I am trying to assemble the fuel tank stopper etc but dont know where to begin as they have left this minor but important part out.

The stopper has 4 holes 1 in the centre and 3 surrounding it. I have figured out that the three metal tubes fit into the 3 holes surrounding the centre hole and that the discs go top and bottom of the stopper small disc goes into fuel tank and big disc goes outside

How does it all secure together and whats the middle hole for and where do i fit the bit of pipe that came with it and that metal weight type thingy madige

Please please help a very frustrated newbie