Text Allignment on all Pages

I am having trouble alligning my text within my website, i am currently using the TwentyFourteen theme. The text is centered in the page too much and i would like it alligned more to the left.
I believe it may be the template code but have no idea where i would find it.

https://www.icknield-roadclub.org.uk

If you have a look at my site you will see my problem straight away.

Many thanks