how to set stock suspention?

i have been searching the forum and have found lots of useful information and links oh now to properly set sag. where my problem comes in in when i go through the procedures, and adjust the preload, i still have to much rear sag. looking at the shock i see the upper nuts that set the spring height on the shock, is that where i should adjust next to put a higher static load on the spring to start. if it helps i am 200 lbs with gear, and would like if possible to be able to back of the preload adj. when i am alone and be able to bump it up when i have a passenger. the only other option i have found is to install a different springs from Hyperpro of race tech. Any ideas.....

 

ok that solves that. next question then, for fitment onto a 91 vfr dose it mater what year 929 it comes off, and any one out there have dimensions of the bracket that i will be needing to fab up. by the looks of it it is simply made from square steep tube stock. final question is how dose the new setup handle 2 up compared to the stock, the bike squats like hell 2 up right now.

 

Is dat dare one of dem cat-oons? Mixed bread I surspect.

 

k think i will do the 929 conversion.. i have all tooling needed for doing the rebuild as well as a 2000 psi bottle regulated nitrogen at work, any one know where to get the o rings or the sises i will need as well as what weight oil. second question how necessary is a rebuild if the shock has no leaks and looks to be in good shape. all that may be needed is a top up on the nitrogen? or are there problems with the age of fluid and loss of viscosity. thanks for any info.

 

The later model Showa shocks are good quality units and don't normally need rebuilt - not even recharged. Keep in mind that a 929 shock still has stock valving that is very similar to what is in your stock VFR shock. The pistons are the identical same part, in fact. While the 929 shock is overall a better performer it's still a stock shock and thus has limitations. If you are considering a revalve in the future then I would say that it would be a great place to start.

 

That's great to hear thanks for the imput Jamie. I think I would put it in as is other than with the properly rated spring, and the see how it is and when I get board or want more out of it probably when winter come again put in the valves. As far as springs go what direction is good to go. I am a semi aggressive rider (200 lbs tith gear) and I carry a passenger how is probably (140 withgear). And right now the bike squats alot loaded up even with pre- load turns all the way up. Once again I apriciatte any input and experience you all have to offer.

 

I'd suggest a 1000lb/in spring for your weight. I do not suggest including a passenger when setting up a suspension unless you ride with them 100% of the time. Good luck!