2001 0x66 Yamaha 225

[73makocenter]

I have a 2001 225 Yamaha outboard. I have some mechanical knowledge, not extensive, but some. How difficult is replacing my 02 sensor? Are there any need to knows, I don't have a service manual. I was also wondering if there are any, one better than the other places to order parts online? I've been using boats.net. their prices seem reasonable.
Thank you for your help, 73 makocenter.

 

[cousinabe]

Re: 2001 0x66 Yamaha 225

i use boats.net

www.boatsetup.com/O2sensor.pdf

 

[rodbolt]

Re: 2001 0x66 Yamaha 225

why do you wish to replace it? have you tested the one thats in it? do you know how to test the replacement one,has to be done ya know.