As some of you have already found out, Honda has some bad O2 sensors on a number of their 2015 models; including motorcycles and atv’s. Honda got a bad batch of O2 sensors from a supplier. They are aware of this problem, and they (and their dealers) are prepared to replace any bad sensors.

So, if you are having a problem with your sensor, take your atv and/or motorcycle to a Honda dealership and they will replace it for you.