Hello everyone, new to the forum. Just purchased my second busa, and man did I screw up royally. I got the I want this bike tunnel vision and am paying for it dearly. Anyway, I have an 08 with 8200 miles on it. Previous owner put an extended swingarm with 18 inch 240 tire on the bike. There is absolutely no bounce to the rear, its like a brick doesnt move at all when pushed on or sat on. Any idea what the problem could be? I checked out the shock and the spring is tightened all the way down maybe inch, inch and half from the bottom of the thread collar. I have seen picture of the rear shock on other bikes and it appears the spring should only be 6 to 10 mm from the top of the thread. Is it possible that all I need to do is adjust the preload or more likely I need a new shock? Bike also has adjustable dog bone which is on the bottom hole. Also will adjusting the preload raise the bike up? Thanks for the help!!