cleaning 02 sensor on 200hp ox66

Is there a site or info on how to remove, clean,replace the sensor . Thanks
Ken

[jb123]

http://www.boatsetup.com/O2sensor.pdf

Thank You for your help
Ken

O2 sensor

cleaning the o2 sencor on this motor is easy,just rememer there is a passage that comes from the adjacent cylinder that must be cleaned also. be very carefull cleaning this passage because it goes directly into the cylinder and piston damage can caused by forcing something in there!!!