At this point i
got my money back and gave him the title. Upon further investigation we found
out that the fuel pressure regulator has broken internally allowing the fuel tank
to drain past the fuel rail through the regulator and into the intake. In the time
it took for us to go get the battery and come back it had filled up all the
cylinders, the crank case and the exhaust system full of gas. We clamped off
the lines leading to the fuel rail and drained what we could. We also took apart
the exhaust at the tailpipe and around 1 gallon of raw gasoline came rushing
out!!!!

 

Wow thats a crazy story. That's really nice of the previous owner to refund you though. Did you get an FPR and get her fixed up or what? I'm interested to know what happened??

 

a similar experience has made me very familiar with the FPR & fuel injection system on the F4i

 

The Gentleman changed out the FPR, Changed the oil, Replaced the spark plugs and it fired right up with no problems. It runs great now. He even took a video and sent it to me of it running and revving up perfectly. It just sucks its so far away, i really want that bike!!

 

Just looking for a quick bit of advice. I'm getting the sputtering/popping sound and a little dip in my low rpm power. My girlfriend also mentioned that I smell more like gas fumes when I come home from a ride than before, but I'm not sure how much of that is related to the humidity, length of ride, etc. I had this problem with the stock exhaust and I just installed a two brothers slip on and it made it worse.

Ok so here is my question and how my post relates to this thread [&:]. Do you guys think I have a bad FPR or do you think I amjust running lean and this is causing the spluttering.? or to put it another way do you think I need a new FPR or a power commander?

PS I don't have any problems starting the bike cold or warm that I have noticed so far.

Thanks

 

It could possibly be the FPR. I just replaced mine cause it was doing the same thing and now it work perfect. Spent $60 bucks for a new one and only took about 20 min to fix.

 

Yeah $60 and 20 min isn't bad at all. I'm going to borrow a power commander off a friend with the same setup and see if it makes a difference.
Actually I guess I'd rather it be the FPR, I wasn't planning on spending $300 for PC at the moment.
Thanks I'll keep the situation monitored.