Just playing Kerbal for a few days and are starting to get the hang of it to put stuff into orbit arround Kerbal. The problem is getting back because the rocket engines wont start to get out of orbit.
In my case i am using an LV-909 as i saw in a youtube video from Scott Manley where he uses the same rocket to get back to Kerbal. Have checked everything but the engine wont start only a puff kind of sound and thats it. There is enough electricity and fuel and oxidizer is at 100%. Also tested other kind of rockets but nothing works, what am i doing wrong -.-