scary handlebars

[Monsieur Remings]

Just got my CB back on the road and I came back home the 1:4 way up a very steep hill, got in through the back gate and the handlebars went skewiff'. Rather frightening and is now tightened back up but has anyone got any tips or should I just replace the bars?

 

[PpPete]

What sort of stem is it?
post a pic if you're not sure

 

[Monsieur Remings]

Will do that porky, give us a little while.