Hi Trev
no the studs screw out give it a good lubing if you can get 2 nuts on the end then it should be pretty easy to remove,if you have a bench grinder grind the depth of the nuts down until you can get them both on then use a spanner on the first nut the second nut will stop it coming off if you know what i mean.
I dont like using the socket type stud extractors i use mole grips as a last resort!!!
give it a good soaking with wd40, apparently the Americans have a good product but not available here so go with the usual, once soaked start the bike to warm up.
you can try the two nut method the top one locking the bottom one.
failing that either use a stud extractor ( bet that wont work as the lock nut method didnt) or centre drill the middle of the bolt and drill it out. start around 3mm dia, 4mm,4.5mm I think they are 6mm so core diameter is 5.1mm if 8mm thread, core dia is 6.8mm.
I try the biggest possible stud extractor as the smaller ones tend to break.
main thing is to try not to damage the thread, if you do, it can still be repaired with a helicoil.
remember once removed, clean the thread out, with a tap or bolt with a slot cut along length, then when re fitting use molyslip or something to stop the new one seizing.
Still struggling with the exhaust studs, going to try again tonight.
Have another option of a Snap-on socket type extractor but cannot borrow it until Friday,apparently its their latest offering and very good!
If this fails and I have to resort to welding a nut onto the remaining bit of stud to use as a turning tool, is the only thing i have to do is disconnect the battery or have i got to do anything else? ECU for example.
If your welding on the bike disconnect the cdi unit for sure!!!!
I have used the welding of a nut method before on my sons qaud,also the socket type extractor but this was a cheap version and was sh1t so with the snapon i'm sure you will succeed goodluck.
I've used a Arc welder to remove broken studs before, (if as in your case there is enough sticking out) what I have done is get a piece of mild steel say 6mm thick by 30mm or similar width 300 to 400mm long then drill a hole in it just big enough to fit over the stud, then weld it on to the stud, what happens is the heat generated to the stud from the weld really helps, and if that still hasn't released it you now have a nice long lever to get it turning, but don't go mad, keep spraying on the WD40 or similar and try moving it in both directions but only in small amounts, once it has released you can cut the length of the mild steel down to a usable length.
Good luck with getting the bolt out. Don't try to heat the bolt up as it will expand (as trainrails in the summer) and only get more stuck.
If you succeed and put the new bolt in don't forget to put on plenty of copper grease! Good luck
