Bad fuel pump or relay?

I have an 86 VFR750 which has not run in about 8 years. I pulled the carbs had Billy C rebuild them. Changed all other fluids, and hooked them back up. I performed the fuel pump test per the manual but was only getting about 8 oz of fuel per minute instead of the 27 oz I believe the book states. It was also not coming out even it was pulsing out. My question is the fuel pump bad, can I disassemble and clean, or do I need to buy one?

Next question is the fuel pump relay. How do I know this works? I by-passed it when testing the fuel pump. Any help would be appreciated!

 

The pump is pretty much a sealed unit, it either works properly or it doesn't. If you do a little searching on the threads for fuel pumps it looks like people have found new replacements at your local auto parts store- you would be looking for a simple 3psi pump.

I thought there was a test for the relay in the manual but I could not find it.
A simple test would be to check the voltage in the unit to see if it sends voltage on it's sender wire when it should send a voltage. If it does that than the relay is working properly.

 

Ok, looked at Clymer and they said to disconnect the electrical connector (you can keep the yellow/grn connected), turn the ignition ON and connect a voltmeter to the harness connectors and you should see battery voltage. If that is OK then connect an ohmeter (set on the lowest ohm scale) between the black/blue terminal from the harness and the black/blue terminal on the relay there should be continuity (low resistance)- if you get something other than a low resistance reading the relay is faulty.

 

Thanks Dukie that helps a lot! One more question. When testing the fuel pump should the fuel pulse out or should it be an even constant flow?

 

I would say as long as it hits near the target volume in the time specified and did not run constantly when hooked up (it shuts off when it fills the float bowls) I would not care if it did either/or.