Yes, I changed out my front and rear springs. I did it mostly because I am only 5'6 and wanted I little more foot on the road when I was stopped. I also shaved about an inch off my seat. As long as you have a clean place to work it is no big deal. I turned on the radio in my garage and just set into it with no problems... just give yourself a few hours to get it done and and a torque wrench with allen wrench attachments. I got the Hyperpro lowing springs and they were noticeably better than the stock as far as removing some of the harshness... wasn't a day and night difference but it was better and good enough for me.The suspension in the forks seem a bit harsh. Does anyone have any experience in changing that at all? I put Progressive fork springs in the Bandit when I had it, which seemed to help with the brake dive & soaking up the bumps in the road.
The stock oil in the FZ6 forks is grey and nasty looking... Felt good getting some good oil in there.