 " Motorbreath " was written by Hetfield during his time in Leather Charm and tells about life on the road . The song is based on a four @-@ chord verse and a stop @-@ and @-@ start chorus . The most recognizable parts are Ulrich 's drum rolls in each chorus and the riff that accompanies Hammett 's solos . Because of its speed , the song requires fast picking by the bassist . " Jump in the Fire " was originally written by Mustaine , with lyrics about teenage sexual experience . Hetfield 's revised lyrics for the album were written from Satan 's point of view , describing how the devil watches people killing each other , and is sure they will go to hell for their actions . " Jump in the Fire " was released as a single in the UK in February 1984 to promote a UK tour with Venom . The single featured " Phantom Lord " and " Seek & Destroy " as live tracks , although they are actually studio recordings with fake crowd noise dubbed over them . The single 's cover art features an oil painting titled The Devils of D @-@ Day , created by artist Les Edwards in 1978 . 
