Oxygen sensor on 200 ox66

[Short Bass]

What are some of the signs of a bad or dirty Ox sensor, and does it help to clean it? I have a 2003 200 ox66.

[HookedAgain!]

Hesitation, can't run full rpm range. I clean mine every 2 or three years

[CJ1]

Rpm fade is the main one. Usually drop 5-700 rpms, then you can back off and it will go to full rpms again and fade back. Mine also had a rich idle. Cleaning can help and you need to clean the draft tube for the sensor also! I have had moderate success cleaning them. If I am doing one for a customer it gets replaced. CJ

[Short Bass]

Thanks Hooked again, that is exactly what it is doing.

[1ranger487vs]

You can get a cheaper replacement sensor on line. Think it’s a ntk 20006 or something like that around 30 bucks

[javelin90]

Ntk21006 i think