Fzs600 gearbox/selection fork preservation?

[unfazed]

I have 87000 miles on mine and gearbox still very smooth.

A few important items which help,
Correct clutch adjustment 5 to 6 mm play at the lever to mount area
Correct Gear lever adjustment (not adjusted correctly can cause false neutrals which will eventually take out the box)
Correct Chain adjustment
Good quality oil changed at 4000 mile intervals
Motocross boots would not be recommended