A new probe = £75
 

http://www.horizonsunlimited.com/hub...1-2#post143212

Yep, the probe will produce better mileage but I thought it is there to produce cleaner\more complete burn of the fuel mixture by making it more efficient (but I am ready to hear from the experts about why they have been fitted) - no matter, they are on lots of vehicles so we are stuck with them when buying vehicles in general!

Dave

Final update
 

Disconnected the lambda (took about 10 mins) and took the bike for a 150 km spin. No apparent difference except approx 1km less per liter. The bike ran flawlessly as always.

It seems that the ECU is handling the missing lambda excellently. I'm quite pleased with this test which means that I can remove it from the pipe (and plug it) and install it back again when un-leaded fuel becomes readily available again. Or just throw caution to the wind and replace it when I get back.

I was convinced before, but even more so now, that my XT660R '07 will do nicely on my Africa trip. I am quite pleased with the ease with which this snag was overcome.

Will however still need to fit catalyst free cans if I want to avoid burning my catalysts off in my stock ones. Still debating this issue with myself.