How to get oil filler plug off 126p gearbox

[Iffy650]

Hi,
Does any have experience of removing the plug on the gearbox of an air cooled 126p? What size / type of socket is needed as the head on the plug is square and 13mm across the flats. Tried using a normal hex socket but the plug is stuck tight and i didnt want to strip the corners off that square head.
Any advice welcome, cheers

[Macmonkey]

When I had to remove my filler plug off I used the square end of a half inch socket, it's a good fit so hopefully won't strip the head. I don't think my plug had been removed in a long time and I found a couple of gentle taps and actually slightly tightening it before loosening helped remove it. Hope this is of some help.

[ChrisRLewis]

http://club126uk.co.uk/forum/index.php?topic=165.msg780#msg780

[Iffy650]

Thanks Chris and Macmonkey,
I'll give the square end of the extension bar a go.

[ChrisRLewis]

These old 1/2" wrenches are excellent for this type of job.