Some novice T questions

[Tom in SW VA]

I just bought a 24 T. I have some very elementary questions. Help.

1) How do you get the headlamp open to change the bulb?
2) Is there a cutoff valve for the gas? It is leaking terribly.
3) How do you know where neutral is located in the lever on the left?
4) How do you know where neutral is in the low-high petal?
5) How do you use the reverse petal?

I know these are simple questions, but I need your help.

Tom Thanks