+- The CB1100 Community Forum (https://cb1100forum.net/forum)
+-- Forum: Honda CB1100 Discussions (https://cb1100forum.net/forum/forumdisplay.php?fid=5)
+--- Forum: Mechanical & Technical (https://cb1100forum.net/forum/forumdisplay.php?fid=7)
+--- Thread: Fuel pump noise? (/showthread.php?tid=4367)
Pages:
1
2
Fuel pump noise? - Ben70_imp - 03-11-2017
The "priming" noise my fuel pump has always made with key on during the gauge sweep has changed, after riding a ways, to a louder and more shrill noise when restarting a warm engine after, say, a fuel stop. If I go out in the garage and try it cold, it's normal. Any ideas? I have about 3000 miles on it.
It doesn't seem to continue after startup that I can hear, anyway. I plan to keep riding and just see what happens, especially if nobody else has noticed this. Thanks
Ben
RE: Fuel pump noise? - Lord Popgun - 03-11-2017
Is it under warranty? If you can repeat this consistantly, I'd show my dealer. Fuel pumps are expensive.
RE: Fuel pump noise? - Ben70_imp - 03-12-2017
No warranty on my '13 purchased used. I will just monitor it for now. Thanks.
Ben
RE: Fuel pump noise? - Nortoon_imp - 03-12-2017
Cold gas pumped from underground tanks?
RE: Fuel pump noise? - Ben70_imp - 03-12-2017
No, happens other than at fillups, but thanks for the thought! I was thinking at one point it was a hotter than usual that caused it with the pump located right over the cylinders. I am going to try it again this afternoon and see what happens. It's definitely not subtle. hopefully it will just go away
Ben
Fuel pump noise? - Elipten_imp - 03-12-2017
I would remove it, soak in Techron for a week. And then pulse with voltage while in Techron then reinstall and see if that cleans up the noise
Sent from my iPhone using Tapatalk Pro
RE: Fuel pump noise? - mininsx_imp - 03-13-2017
I have a '13 and the fuel pump noise is different sometimes on mine, but I pay no attention to it, I figure it's the nature of the beast.
RE: Fuel pump noise? - dave - 03-13-2017
The sound of my fuel pump varies also (2014 Dlx). Sometimes it is just louder. The first time it got really loud was when I had around 1,500 miles on the bike, so I took it to my dealer to see what they thought. They ensured me that the sound was "normal", and they demonstrated that a used, 2013 CB1100 on the floor sounded nearly identical. I have found that it sounds louder when the fuel tank is nearly empty, compared to a full tank, and this might be because the empty tank resonates the sound louder. I have 13,000+ miles on the bike now and the pump is still working.
RE: Fuel pump noise? - Ben70_imp - 03-14-2017
Thanks for the input, guys. I have ridden for several days and several hundred miles since I last noticed it. Seems the forum ju ju has banished it to whence it came. I will poke this thread again if I experience any side of the road time, or if it comes back worse, whatever.
It's comforting to note there hasn't been a rash of ANY real problems with this bike. When I was shopping last year the Guzzi forum was kind of amusing. Apparently you almost needed to be a technician just to get a new bike home in some cases. Not bashing! Rboe alert!
RE: Fuel pump noise? - the Ferret - 03-14-2017
Lol try a Ducati forum. My son rides a Monster 696. He sent me a link to that forum one day in which 5 out of the first 6 threads having to do with their motorcycles mysteriously not starting all of a sudden.