I have a lightly used K&N air filter YA-6004 for the fz6. I used it for about 2600 miles so it is still clean enough to use for several thousand miles before it needs re-oiled or you can re-oil it if you want.
New it lists for $62.99 at k&n
YA-6004 - K&N Replacement Filters, Replacement Air...
I'm a little hesitant to admit it, but I have never received any motorcycle training and I have just been faking it. :shakehead: :spank:
I've logged a few thousand miles without incident and I think I've more it less got the hang of it but I have scheduled my BRC for Monday and Tuesday:D...