zxr250C/ zx2r rear shock

hey guys, i have 2 zx2r's and on the rear shock it has numbers 1-7 and on both bike each one is set to a different number, i want to know if it can be adjusted and if so how, it seems like theres a cycliner with holes in it, there is no adjusting screw, like any normal coil over suspension.. becuase alot of poeple said that my bike seems abit lower then usual..
im just sussing out the possibilites.

cheers. fadi

Sounds the same as my bike - preload I think it's called?

You put a special spanner in those holes (or whack a screwdriver with a hammer .

Higher the number, taller the suspension (seat height) under your weight , but it's not gonna "raise" your bikes geometry as such or make it rebound any faster, just stop it from bottoming out on bumps etc....

I hope that's right

Yes, thats the spring preload - used to set your sags;

A guide to doing this;
http://www.sportrider.com/tech/146_0308_geek/index.html

i'll have a look around for that spanner, i was looking in the manual and it didnt say much about it..

C Spanner

isnt a C spanner used for big hex head screws or bolt.. this one is completely round with holes in the middle.. im a little big confused.. ill have alook anyway..
cheers guys..