Evening everyone,

Just read through this thread with interest having wanted to do Kev's mod for fuel/CO mixture so Iwent down to check the reading on the wife and I's trip ready 07 XTRs.

My CO reading was 12 - I've now increased it to 25, but the wife's was 42!! Am I to assume that someone (previous owner) has really upped the mixture before? I'm assuming the 'standard' figure is fairly universal for these bikes and not unique. If that's the case would I be right in thinking that I need to lower her CO mixture to nearer 25?

In case it's relevant the bikes have both had the same mods: metal mule (scorpion) exhausts, K&N air filters.

Any light you can shed would be greatly appreciated.....