a 12 point socket should be thin enough to get down into the riser to loosen it up.. that is a f'ed up setup they use on that.

 

Ok....
I'm not at all following...
But...
Are you just trying to take tge little nut off the riser inside? Take the top cap off...
Then there is a lil nut in there...
That one, right?
So when you turn that one... The whole stud kit turns out inside the riser... Right??

 

I just looked thru my manual...
Looks like you will have to take the whole set up off... Try to get a socket in the bottom...
Or sacrifice the stud kit...
Grab it however you can...
The lower threaded part...
With vice grips... Bench vise...
Whatever ya can....
Save the risers... Get a new stud kit.

Maybe try one of those kobalt hollow type sockets, get the big one... The another inside it for the small nut...

Just throwing ideas out there.... Good luck..

 

I have a '93 FXSTS. I removed my risers earlier this year. I used a standard 3/8 drive Craftsman socket 3/4". The risers were full of rust, so I filled the risers with WD-40 a day before. I had to go around the stud ( inside the riser) with a small screwdriver to get some of the rust out, but had no problem getting the socket ( it was a tight fit) over the 3/4 stud nut. My opinion, You need to use a 3/8ths drive socket and clean the rust out first. I had to hold the bottom of the stud with a cresent wrench ( not recommended, but it worked). I put pull-back risers on, but thats another story and a lot more trouble, but I love'em.

 

OK,, Lets seee.....I am look at Ur diam one step at a time..'

NO 10 is just as I stated its a doulble ended threaded bolt with a nut machined in it that goes through the riser no 26. It has rubber bushing above and below it, No's (12)...

Then washer no 5 and locknut no 8, thinking this is the locknut U can't get loose.

Then a spring no 11 and the cap No 25 with two bolt that tightens the bars.

I still say as I have above stated that U might get a THIN WALL socket to remove the locknut inside the riser to loosen the double threaded bolt that goes through Ur riser.

[B]Another option I used to use sometimes is to wedge as big as Screwdriver as U can inside the riser between the locknut and the ID of Ur riser, sometimes that will lock the nut in place and then with whatever wrench U have try to back out the whole bolt using the nut on it below.

Also let it soak in some good penetrating oil for several hrs will help before trying.

let us know If U get it. And thats a good site to have that U posted the break down of.

 

Thanks to all that helped. I ended up solving the problem by double nutting the bottom end of the stud and using an impact wrench on the locknut which was on the top end of the stud.

Nothing's ever easy, is it?