VERSE - Main riff
E|--------------------------------------------------------------------|
B|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
D|---------------------5p0--2---------------------0------------0h2----|
A|-----7--5\4---5-------------------7--5\4---5-------2p0--------------|
E|--0---------0-----0------------0---------0--------------3p0---------|

This is doubled by a second riff:
E|-------------------------------------------------------11/12-12-12--|
B|-------------------------------------------------------11/12-12-12--|
G|-------------------------------------------------------11/12-12-12--|
D|--x-x-x-x-x-x-x-x-x---x-x---x-x----x-x-x-x-x-x-x-x-x----------------|
A|--x-x-5-x-7-x-x-x-x---x-5---x-x----x-x-5-x-7-x-x-x-x----------------|
E|--x-x-x-x-x-x-5-x-7---x-x---x-5h7--x-x-x-x-x-x-5-x-7----------------|

There's a variation on the main riff now and then, and it goes:
E|--------------------------------------------------------------------|
B|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
D|---------------------7b8r7~~-5---------------------0------------0h2-|
A|-----7--5\4---5----------------7-----7--5\4---5-------2p0-----------|
E|--0---------0-----0---------------0---------0--------------3p0------|

CHORUS - Power chords

G5      A5            riff
But I'm always on the run (always on the run)

G  O - Played over A5, riff, B5, riff

   A5
E|------------------------------------------------------------0-0-0-0-0-0-0-|
B|--------------------------------------------------------------------------|
G|-------------------(0)-5-(0)-7-(0)-7b9-5-7-(0)-5-(0)-7b9-7----------------|
D|-----------5-(0)-7--------------------------------------------------------|
A|-----4-5-7----------------------------------------------------------------|
E|--/5----------------------------------------------------------------------|

   riff
E|--------------------------------------------------------------------------|
B|--15b17~~~--17p15-----------------------------------------14-17----14-----|
G|------------------16--16b19--16-15-14--15p14p12-----14b16.......16....r14-|
D|------------------------------------------------14------------------------|
A|--------------------------------------------------------------------------|
E|--------------------------------------------------------------------------|

                               B5
E|--------------------------------------------------------------------------|
B|--------12------------------------------14h17p14--------------------------|
G|--12----------12-14-12---------14b16~~~----------------------14b16r15b16~~|
D|-----12----14----------12-(10)-------------------12b13r12-10--------------|
A|--------------------------------------------------------------------------|
E|--------------------------------------------------------------------------|

                                           riff
E|----------------------------------------12-15~---12-------15~---------15~~|
B|------17b19r17-16-17-16-17/19~~~\---/12-------------15p12-------15p12-----|
G|--------------------------------------------------------------------------|
D|--12----------------------------------------------------------------------|
A|--------------------------------------------------------------------------|
E|--------------------------------------------------------------------------|

E|--12-------15-------------------------------------------------------------|
B|-----15p12------15p14p12--15----------------------------------------------|
G|-----------------------------16p15p14-16p15p14\12--15p14p12---------------|
D|------------------------------------------------------------14p12---------|
A|------------------------------------------------------------------14p13p12|
E|--------------------------------------------------------------------------|

E|----------------------|
B|----------------------|
G|-------------12-12\---|
D|-------------12-12\---|
A|----------------------|
E|--15p12~~~~\----------|