Ok, cool, time to check out ebay again. i've been offshore for 3 months now and it will be like xmas when i get home to all the bike bits i have bought while ive been bored!

The best choice is O2 sensor wide band cure all the problem.
It has more accurate and range to 10 Volt. You can set any AFR from 12.5 to14.6.
Your bike will run cooler and more progressive.