FZS600 on a trackday. Any advice?

[His Dudeness]

what sort of condition is the bike in? there's not a lot you can do other than make sure everything is working as it should be. i'd do all the fluids (oil, coolant, brake fluid), clean out the air filter, make sure the chain is happy, lube all cables, you could stiffen the rear shock and change the oil in the front suspension.