Allen bolt size for 84 vf750f

Does anyone know the size of the allen wrench needed to remove the handlebar on a 84 vf750f. Its a large one, and Id like to pick one up on my way home from work...I just dont have the clymer in front of me. If anyone knows the size, that would be great!

 

It's a 10 or 12mm. Pick up a set that includes 6,8,10,12mm allens, those are the most common fasteners on your bike. The same for sockets.

 

Harbor Freight is your friend:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92527
$16.99

I mounted mine on the side of my toolbox so it's always accessible.

 

yup, thx! Ended up being a six

 

the bolt is a 5/16 allen good luck