I've got a question for you motorcycle gurus out there. I want to upgrade the suspension on my 2002 Katana 750 and am having trouble with some of the specifics. I'm a member of a Katana forum also but everyone over there assumes everyone else races their bike so I can't get any decent feedback on an entry level upgrade (in TW suspension speak, everyone there thinks everyone needs a full LT setup when in fact plain old 5100's will do).
I've found that the stock suspension rate is .65kg/mm and to have the bike setup for my weight, it should be closer to .90kg/mm. I've located a set of springs and want to open up the fork, swap the springs and close them back up. The other site is telling me I need to replace all my seals and get cartridge emulators as well, which effectively doubles the cost of this upgrade. I don't think I need new seals since the bike has under 9,000 miles on it and aren't showing any signs of leaking or deteriorating. I don't think I need the emulators because truth be told, I'm a mildly aggressive street rider at best and will most likely never see a race track. I feel for my needs the stock dampening adjustment would be sufficient but I can't get anyone with any kind of motorcycle know how to give me sound reasoning why I should or shouldn't go with the cartridge emulators.
So, who's the resident motorcycle suspension expert?