For those of you who have had the older Yamaha two strokes with the O2 sensors, what is the typical lifespan of the sensor?
I purchased my '03 Yamaha, original outboard on my '04 Ranger, a year ago last August. Last winter I went through the motor, replaced all the filters, had the injectors gone through by Brucato and I pulled the O2 sensor, cleaned everything and reinstalled it. The O2 sensor was really clean. I have no idea how old this sensor is.
Just trying to decide if I should go ahead and replace it or maybe buy everything to replace it and wait until it starts acting up.