FZS600 - No power, won't go faster than 50, engine not smooth

[Torque]

You say the tank breather is blocked to stop it leaking, if air can't get into the tank fuel can't get out, try it with the cap open and see if the problem goes away.
Does it make a sucking sound when you open the cap?

There are 2 hoses, breath and drain.
[size=78%]I've got now drain hose blocked, but breath it's not blocked.[/size]

Net filter, number 37?

Right, I've got it, but was curious if it's connected to anywhere.

chk ..number 18...for rips,or pin holes!!

They look almost like brand new.