Kappy5003 I did mine not so long ago, 1994 ST1100 (non abs)
Basically, (this is not a step by step but a overview)
You should find a couple of you tube links as well.
I took photo's first, as it was going to be a start/stop process (work).
I measured the top of each fork tube to the top of the triple tree and recorded same.
Loosen the top bolts on both fork tubes before you undo the triple tree bolts, A MUST. (see photo)
Suspended brake caliper with "occy strap" to take the load off the brake line. (see photo)
Drained each fork and measured the amount of oil and recorded same. (see photo)
Washed forks tubes (with springs in) out with petrol to remove and oil and metal finnings. (you will have some) and let them dry in a ventilated area.
I have been informed by a very experienced bike mechanic, don't worry about the "anti dive" it is more show then go.
Replaced oil (I'll try and find the amounts later) and assemble.
Compress fork tubes and assess the rebound, the aim is to get the both forks to be the same, BUT, the "anti dive" fork should work first, hence more oil in that fork.
Assemble, and place fork tubes in the triple trees as mentioned above (measurement) and "finger tight" the top (only) bolts on the tree.
Place your axle through your forks. You should be able to rotate the axle smoothly. If not, one of you tubes needs moving up or down. VERY IMPORTANT STEP
Once right, torque wrench all bolts (there should the manual on this forum somewhere) and reassemble
Sorry, there's no doubt there are little points I've missed out on, but others will chime in and help out or correct.
I made this to assist with the top of the forks:-
This helps getting past the handlebar, due to risers
Off to work, will follow up tonight.
Cheers
Dave