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All 650Fs 02 sensor delete

Tomrobb

2016
CB650F
Jun 19, 2020
Riding Since
2009
So I got my bike back last week, i got myself a 02 sensor eliminator, I'm trying to find where it plugs into, I've looked everywhere for a answer but I cannot find a solution. Thank you
 

miweber929

2014
CBR650F
650 Alumnus
Staff
Feb 13, 2015
Woodbury, MN
Riding Since
1975
Find the o2 sensor on the exhaust and follow the wires up, or look in the resources section for the Service Manual and look there. I think it’s either under the tank or under the seat but don’t 100% remember.
 

FogDucker

2018
CB650F ABS
Apr 3, 2019
Canada
why you want to remove it ?
if you have PCV installed, you need to block your O2 sensor, otherwise, anything below 60% throttle will be overwritten by the ECU. It's a closed loop and ECU has the upper hand in adjusting the AFR numbers. Lots of data come after combustion (via O2 sensor) and the ECU decides how to tune the mixture afterward. if you block it, you can utilize all of your map cells.
 
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