yeah im having trouble with my bike and i think its because the fuel pump is going bad. When i turn the key on just to turn the lights on i hear this weird sound for like 2 seconds well when i turn the bikes lights on and touch the fuel pump i can feel it vibrate with the noise. could that be a sign why my bike is running so rough at 5000 rpm and below and surges about 100 rpm while its idiling????? Please help

 

No that is ur Fuel Injection priming, if you dont hear that you have a problem, normally if your fuel pump is goin bad it goes bad. if its interminittent its usually only for a little while then totally goes. i would make sure your air cleaner is nice and clean, and then maybe check your fuel lines.

 

check your idle screw, and try out the fuel cut relay....

 

yep. i replaced a fuel pump after a short. when pumps go out, they generaly just stop working. no intermitance. i had a big fuel issue a while back and found a leak in one of the t-joints at the fuel rail. prior to finding that leak, it just wasn't delivering fuel. if you hear it whining, its working. also check your filter to see if its clogged. if you really want to be sure... just pull the hose that leads into the rail and turn the bike on, if it spits fuel all over ya.. it works.

 

your an idiot... f4's have carbs chris...... no fuel injection [sm=icon_ladiesman.gif]

 

where is the fuel pump located?

 

its under your right leg midway down your shin in a standard riding tuck position. it has a black cap on it and looks cylindrical bolted onto the subframe.

 

sounds like its working good to me. thats normal as far as the fuel pump noise. dont know about the surging, not enough info to help diagnose. they have a lumpy idle at times, especially when hot in stop and go traffic.

 

Post's six years old... I think it's safe to make a new one

 

lol, o. yeah your right. all i was looking at was that it has its last couple of post yesterday. thanks.