fuel pump running when bike is off 2016 650f - CBR Forum - Enthusiast forums for Honda CBR Owners

fuel pump running when bike is off 2016 650f


Old 11-04-2018, 02:15 PM
Junior Member
Thread Starter
Join Date: Nov 2018
Posts: 1
Angry fuel pump running when bike is off 2016 650f

Changed my battery the other day and as soon as i attached the positive cable, the buzzing started. I read that this is the fuel pump charging, but the key is not even in. When i put the key in the ignition and turn the bike on, nothing happens. the gauges and cluster don't even turn on. As per my mechanic, i inspected the fuel pump relay. I actually removed the fuel pump relay and it's still doing it. Now my bike is in pieces and i have no idea what to do.

I've only had the bike for a year and there is 500 miles.
Reply With Quote
Old 11-05-2018, 01:36 AM
tentacleslap's Avatar
Super Moderator
Join Date: Oct 2013
Location: Calgary, Canada
Posts: 403

I don't think it would be the fuel pump. It shouldn't get power until the key is turned. I'm guessing major electrical fault. I'd start with the battery and check the wires until you get to the dash. Check all the fuses. Poke around with a multimeter and look for heat damage. Confirm voltage. Give those common grounds a visual, and if it's making a sound, try and locate the source

I don't know that particular bike, but if you want to rule out the fuel pump, you can just unhook a fuel line downstream of the pump and hold it into a suitable container. if it's failed open it'll always pump, and if it's failed closed it'll never pump
Reply With Quote
Old 11-09-2018, 01:04 AM
Junior Member
Join Date: Aug 2018
Posts: 27

Did you have some thing like a temp battery connected to the bike's power lines with the removal of the old battery? Like the newer the bike the more of a pain in the *** are the security features, like if the bike is fully disconnected to it's power supply.So lets say with a some thing like a 9 volt battery still connected to the bikes neg & pos battery wires, so as the modern bike's ECU is still able to talk to all it's friends & think all is well, in the wiring loop? I'm not saying this is "it' as the most modern bike i have is a 2008, but even with this 08 bike the manual strongly states that before ever disconnecting the battery, I have to at least keep some power going to the bike with at least a 9 volt battery until the new battery is fully connected. C.Webb
Reply With Quote
Related Topics
Thread Starter
Last Post
CBR 650f 2014-
07-17-2018 03:36 PM
New Member Area
06-21-2017 11:11 AM
F4i - Main Forum
07-18-2007 09:30 AM
05-17-2006 06:01 PM
03-19-2006 08:17 PM

Thread Tools
Search this Thread
Quick Reply: fuel pump running when bike is off 2016 650f

Featured Sponsors
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.