Varadero XL125V sump plug rounded off. SORTED

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As title my lad has found the sump plug for some reason rounded off (who the fcuk does that?).

So need ideas as I'm away at work so not at home to see the thing.
He suspects someone has gone at it putting it in with an air wrench, but I can't see how that wouldn't have damaged the sump.

Now I know the usual tricks of trying to file/dremmel a flat edge or two.

However, is the sump plug steel or aluminium on these things? I know the crush washer is aluminium as original fit. Wondering if steel he could tack on a nut. He's got one of those arc welder kit thingies from Aldi/Lidl and apparently has done the welding training at college (sorry, can't say to what 1000s he's capable of ).

I am thinking of 'phoning the guy he bought it off to see if last service was DIY or from a garage/dealer. May be not much help but might locate the cause.

Replacement plug on order. Why oh why don't dealers keep stock of these useful things anymore? There was a time when you'd ask the man (always a man) and he'd have a think, open a wooden draw and give you what you the part. Not now (another thread for another day).

Other than that any other meaningful ideas?
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...and the whirlwind is in the thorn trees, it's hard for thee to kick against the pricks...
Gibbs, what did Duckie look like when he was younger?

[herulach]

If you've got a replacement a set of mole grips would be my starting point. it must have been put on with an adjustable to fuck it like that, no way someones rounded a sump bolt with airtools without stripping the thread as well.
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YBR 125>FZS600

[Bezzer]

It'll be steel if you want to trust him with the welder. Fairly common to have a sump plug with a much smaller head than the standard for the size of thread and so you see a lot rounded off after they've used a few times. A lot of people can't work upside down and keep the socket/spanner square on the hex so end up chewing them up.
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I used to be indecisive but now I'm not quite so sure.

[moonzoomer]

The sump bung is made of steel, remove with a pair of vice grips and replace with new

https://www.ebay.co.uk/itm/Honda-XL125V-VARADERO-01-09-Oil-Drain-Sump-Plug-Bolt-Washer-Type-010-/150714076064?pt=UK_Motorcycle_Parts&hash=item2317424ba0

[MaybeGuy]

https://image.made-in-china.com/2f0j00zMcQDELBsoRe/Damaged-Fastener-Removal-Tool-Twist-Socket-Set.jpg
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[map]

Thanks for the quick replies.

Apparently sorted once able to get at the plug.
Used an imperial sized socket knocked onto the bolt.
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...and the whirlwind is in the thorn trees, it's hard for thee to kick against the pricks...
Gibbs, what did Duckie look like when he was younger?