I did some bracket racing with my Mustang, but that's alot different
than the motorcycles.
I do not think you really need a burnout with an FZ6, as traction is
not really the problem. Doing a big ass wheelie is the problem.
So most people slip the clutch to get off the line without flipping
over. That's where the practice is. Your body position, slipping
of the clutch, and starting line rpm.
An electric shifter would help too, with shift light. Once you figure
out how to launch and shift, it's just a matter of repeating that
procedure every time for consistancy.
Drag racing looks simple but there is actually alot there.