Fuel tanks for rockets

[Anonaaa]

Ive been having problems with adding on fuel tanks and having engines with them, even if i use a pre made rocket from the saves it doesn't work when i turn on the engine with the fuel tanks. any tips on how to fix it

 

[Laie]

Ahem... first thing that comes to mind, do you know that you need to throttle up before launch?

Typical launch procedure: press the keys T, Z, and the Spacebar, in that order. If that solves your problem, I strongly suggest you take the time to do the tutorials.

[Human Person]

Could you specify the problem? Do you have problems adding fuel tanks or do you have problems adding engines, or do your engines not start or do your engines start but the rocket doesn't lift off? Or nothing of the above?

[Starman4308]

Are you playing with mods? For example, with Real Fuels installed, tanks are empty by default.