Does anyone have any advice on removing this bolt

[adam2013]

So I bought a new exhaust for my XR 125 and I need to get the old one off and I dont really want to snap these nuts and bolts in my engine .

here is a picture:
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Nobby the Bastard]

1) hammer a socket a couple of sizes too small on it.

2 ) twist and hope for the best.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[adam2013]

do you know anything for the allen key?
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[CieL]

I think it would be best to just take it to a mechanic. I had a similar problem a while ago with a nut on my brake caliper that I couldn't remove. In the end I gave up and took it to a mechanic, he removed it in 3 minutes. Knowledge and the right tools I guess. He didn't even charged me for it.
____________________
Semper Paratus

[adam2013]

I went to a motorcycle mechanic today and he told me chances are its going to take a good few hours but i suppose if hes going to get the job done i guess it my only option

Thanks for you help
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Nobby the Bastard]

[........................]

Start soaking it in Plus Gas as soon as you can. Best case it undoes, second best it unwinds the stud from the head, worst case it snaps and it might need drilling out.

[adam2013]

it sounding expensive for the mechanic to do
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Pete.]

Weld a M10 nut over it, undo with 17mm spanner.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[adam2013]

would that no give it a better chance of snapping
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Pete.]

[adam2013]

I think ill give that a go but if it does snap inside the engine how do I remove the stud then?
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Pete.]

If it's flush, your only option is to drill. I can do it with a very high success rate but I couldn't when I was a teenager.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[adam2013]

well it need a new exhaust so it has to be done one way or the other
thanks for your help
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[andyscooter]

Decent Allen key will help

I use Allen heads on a decent wrench and have got worse out
____________________
gilera runner vxr200 (chavped)
if its spelt wrong its my fat fingers and daft auto correct on my tablet

[Pete.]

[john24ssj]

Well this might sound stupid but what worked for me is taking an old alan key and putting it and welding to the bolt.

Once off use angle grinder and your done. Only take few minutes, that's of course if you got a welder.
____________________
Bikes: Honda CBR600Fi, Kawasaki ER5

[adam2013]

Ill get started on it tomorrow hopefully all goes well
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Rogerborg]

You should have cleaned it up and been soaking it in PlugGas or acetone-and-ATF for days. Give yourself half a chance at least.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[Polarbear]

Your exhausts will last a lot longer and look a lot better without that ridiculous heat wrap on them.
____________________
Triumph Trophy Launch Edition

[stirlinggaz]

hi,
i'd be tempted to hammer in a torx bit rather than an allen key or hex bit.
hammer it well in & the "shock" might help loosen it off. (its the corrosion thats the issue here)
then loosen with ratchet & replace bolt combined with a dab of those new fangled chemicals that stop bolts seizing.
cheers,
GAZ

[adam2013]

The bike is my daily transport and it need to pass its MOT so i put the heat wrap on to hide the holes

I might of helped but i have been soaking them in wd40
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC

[Pigeon]

If you struggle to get hold of Plusgas, GT85 is also very good for this job. You could try mixing up (30% white spirit, 50% parafin, 20% engine oil)

I had a similar problem on my SV. On the advice of others, managed to get it sorted. But that was stud + bolt and I dremelled off the remains of the bolt, got the exhaust flange off then spent hours with plusgas + blowtorch + ice cold water and hitting the stud with a VERY small/light hammer to shock break the rust bond.
I had just enough stud exposed to get a socket stud extractor on it which cracked the stud / it rotated 1/2 turn then rounded off. But that crack was enough to get the molegrips on and spin it out.

[Llama-Farmer]

Lots and lots and lots of Plus Gas.

Not WD40, not GT85, not anything else, but proper penetrating fluid. i.e. Plus Gas is hands down the best thing I've ever used.



Heat can help too. Getting a blowtorch onto it can help expand the metal which can make it free off easier. Also tightening it ever so slightly to crack it off before undoing it often works well.


If you're really struggling, using a chisel and a lump hammer can work to just smash the bolt round and round until its loose enough for some mole grips.

Or if there is room, stilsons... they're self tightening, so as you turn them they grip more and more. Mole grips and adjustable spanners and sockets and that have all failed me multiple times... my pair of stilsons have a record of about 14 wins and 0 losses.
____________________
Current Bike: 1999 Honda CB600 FX Hornet
Next Bike: I want a CBR-RR. And I want an F800 GS-A. And a VFR 800. Can I have all 3?
Dream Bikes: Honda VFR750R RC30, Honda NSR500, Ducati 996 R

[adam2013]

Where is the best place to buy plus gas?
____________________
Current: '04 Honda XR 125L
Project: '86 Yamaha DT 125LC