i need your expertise...i have a 2000 kaw vulcan nmad 1500 f.i, i am having the fuel pump priming problem. To explain when its cold and on kckstand it will not prime until bike is in vertical (riding) position at this point i cycle the key and can hear it prime up. After riding for awhile (to get it hot) it just depends on whether is gonna cycle and prime or not. Sometimes it has to sit for 30 minutes before it will cycle and prime to start. Now i have been all trough this bike trying to fix problem. I replacedthe d.f.i relay went through all the fuses and we connections with electrical cleaner. Cleaned the throttle body thouroughly, still having problem. Checked with a few local shops and i was told fuel pump might be overheating but i dont know how plausible that sounds. The bke did a sit for a period of time but not sure how long. you can contact me on here or thru email at
sguild@yahoo.com or you can text me if you like at 620-504-2129. Thanks again for any ideas.