1994 ZX-9R, Having to turn the ignition key on and off a couple times to get it to start up. It is worse when the bike has been ridden. It happens about 20% of the time. I have had the ignition switch apart, and i cleaned it. Could it be the fuel pump, or the ignition switch.

Test the battery, bike batteries can and do just go open and dead all of a sudden, have been stranded more than once, filled with gas and then no start nothing, no lights nothing.

Bad fuel pump ????

could be your head gasket , blown hose and overheating point that way

30 amp fuse is ignition ,incorperating the starter motos as well ,so its the other box ,also clean all conections some times these corode ,spray with wd40 or simular .

Most bikes are built with this setup....
the positive battery post has 2 cables....one goes directly to one side of the starter solenoid relay, the other goes to the main fuse for the bike. With the key on, when you press the starter button it completes the circuit for the relay coil, which closes the heavy contacts of the solenoid and puts power to the starter motor.
This design allows the starter button to be constructed with smaller wires as they only operate the coil, not carry all the heavy current to spin the starter.
It sounds like your starter solenoid contacts are stuck closed so power is getting through at all times.
Sometimes with battery unhooked you can tap the solenoid and free the contacts....and it may work, however its probably time to replace the starter solenoid relay.

there must be an exposed piece of wiring somewhere, touching to an earth, causing a short out, and the fuse to blow.?

should be like most 4cylinder bikes...left side coil #1 and #4 plugs right side #2 and #3 plugs. try it if it dont start, then i was wrong. but thats what is on my cbr.

could be a problem with the ignition switch