Hey everyone, as I had mentioned in another forum, I am having some problems with my 00' F4. Long Story short, I suspect that my spark plugs might be gunked up, but while im waiting for the new plugs and wrench to come in, I figured id check other components while i have the entire front end apart.

I want to check if the fuel pump is working properly. According to my service manuel, it instructs to disconnect the fuel hose leading into the carbs from the 3 way couple, insert it into a canand use jump wires to power the fuel pumpfrom its relay. It says to connect the black/blue and black/white terminals in the relay, however there are two black/white relays. Has anyone else done this test and does it matter which black/white wire i use? Also, Im assuming that i have to reconnect the black power harness to the fuel pump (located next to the battery) for this to work? (It had been previously disconnected. Thanks for any advice.

 

Just unplug the fuel line to the carbs and turn the bike on for a little bit. No need to get fancy with an external power source.

 

O really? Just by turning the key to on, the fuel pump starts pumping? I figured it only started when the starter button is pressed. Thanks, I didnt realize it could be so easy.

 

Well it primes when you turn the key some a litte bit should flow out but I really was talking about starting the bike all the way.