I HAVE AN 87 CBR600 HURRICANE AND I AM HAVING SOME PROBLEMS WITH THE FUEL PUMP.. THE FUEL PUMP DOES NOT WORK IF I JUST TURN ON THE KEY AND TRY TO START MY BIKE, CHECKED FUSE AND IT IS GOOD, BUT IF I UNPLUG THE WIRES TO THE PUMP AND USE JUMPER WIRES OFF THE BATTERY THE PUMP WORKS... ..... IS THIS A FUEL PUMP RELAY PROBLEM??? IF SO WHERE IS THE RELAY LOCATED??? THANKS .. JOHN

 

fuel pump relayis located in centre of frame in front of the battery box.

 

How old is your battery? If the voltage is too low in the battery, the magnetic field generated in the coil of the relay will not be strong enough to close the contacts. You know the pump works... I hada similar problem and it turns out to be a bad battery.

 

hey i got a fuel pump that i straight wired and it works when i plug it in and try to see how much fuel comes out when it pumps and i mesured it and it only pumps out half the amount it says it should in 5 seconds? any ideas about this thanks

 

Have you got a meter to measure voltage? Check the battery first...should be almost 13 volts fully charged. If it drops under the load of the fuel pump below 10 volts get a new battery.

 

i dont have a meter to mesure voltage where do i get one
thanks

 

any electronics/hardware store

 

i checked and it has power all the way to the plug for the pump i havent checked to see if it goes further but the pump dosnt work any ideas.

 

The wire is soldered inside the pump. These leads can come unsoldered if the voltage is too low. I don't know how much you know about electricity, so let me tell you one basic fact... When voltage drops amperage (or draw) increases. The heat from the increased amperage melts solder, burns wires, and damages other sensitive electronics. I suggest getting a meter that reads dc volts and ohms.
With the voltage meter you can test to see what the voltage is at your battery with the bike off, during starting, and while running. The answers to those three tests can tell you a lot about your battery, charging system, and starter.
The ohm function can be used to test continuity or path for electricity to travel. You should have continuity if you measure across the leads of the pump.

 

here is an example of a wire coming unsoldered. This is on the 87 fuel pump.

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