Fuel pump not working when key is switch on - 1992 Yamaha FZR 600

check your inertia switch on the passenger side kick panel.It is a red switch that control fuel pump pressure.Check and see if its engaged etc.You should here the pump once you turn the key to phase two.This is a start..it the switch is not the issue, check the fuel pump fuse.

If you mean the inertia switch that shuts off fuel in the event of a crash, that is a Ford only part-no others have them.
Does your fuel pump turn on for 2 seconds, with key on, not start? If no, check the ECM-B fuse (20 amp) in the power distribution box by left (driver's) fender. This fuse sends power to the fuel pump relay, also in the distribution box.
To verify a bad fuel pump, check for power on the pump wire at the fuel tank connector with the engine cranking over. It is a gray wire. It should also have that 2 second signal with key on. But with engine cranking over, it should be a steady power signal. If power is on the wire, before condemning the pump, check the fuel pump ground. If ground is good, the pump will have to be replaced.
If pump is working and you have pressure up to the injectors, you will need to check the injector circuit. Post back with what you find.

Power comes from a fuseable link to the pump relay, then to the inertia switch on the dark green and yellow wire. Power from the inertia switch to the pump is on the pink blue or pink black wire.

check or replace fuel pump relay, or you have a bad starter/ignition switch, not to be confused with "key switch".

I don't usually do diagrams due to copyright laws.
From the fuel pump you have a gray wire and a black wire.
The black is ground and the gray is power from both the pump relay and the oil pressure switch.
The oil pressure switch provides power to the pump once the engine starts.
At the relay, you have a green and white wire that provides power from the ECM with the key switch on. You have an orange wire that provides power from a 15amp fuse.
The gray wire going to the pump, and a black and white wire for ground for the relay.
The ECM provides power for 3 seconds when the key switch is turned on to boost line pressure for startup.

Yes. The switch is usually located around the passengers kickpanel. There should be an access hole to press the button on the switch. Sometimes the part is just above the carpet and sometimes you have to remove the kickpanel. If you are unable to find this switch on the passengers side,then look on the drivers side kickpanel.

Under the hood is a Powerbox. The shutoff switch (inertia switch) gets its power from the Fuel pump Relay after the Ignition is turned on. If resetting the shutoff switch does not help, your fuel pump Relay may be bad. On some Ford models, the horn Relay is the same Relay used for the fuel pump. This would allow you to swap and test before buying a new Relay.

The relay only operates after the engines oil pressure is at operating PSI. If the relay was replaced and the fuel pump is not heard working when the ignition key is switched to the ON position for 5 seconds, replace the engines oil pressure switch. That switches 3rd wire connects to the fuel pump to run it for 5 seconds to prime the engine. That switch can be tested without the engine running. Just turn the key to the on position and listen for the pump to run for 5 seconds

without starting the engine position the key to the on position.
you can hear the fuel pump operationing for 4 to 6 seconds upon having the key on.
if not heard running check the fuel pump fuse, the fuel pump relay, and the engines oil pressure switch.
they all work the pump you see
the engine oil pressure switch runs the pump untill the engine reaches normal pressure
once the pressure is reached to the normal range the computer shuts that circuit off and turns the fuel pump relay on

Not usually, when you hear clicks it means the relay is switching. Its probably the fuel pump that needs attention.

poss causes are the ignition electrical switch on the outside of the column, not the key but the switch the key operates through a linkage rod, the other issue is the fuel pump relay under the hood in the power distribution box could be defective, also was the connector at the fuel pump on the fuel tank clean with no corrosion? If u don't understand how to run electrical tests on these parts then this is better left to a shop who has the test e equipment and knowledge of the system and workshop manuals.