I have the Yamaha diagnostic tool which enables you to read the air intake temperature value the ECU is being sent, which helped a lot setting up the fuelling mod.

In order to maintain the same differential between real ambient and measured intake temperature (in other words fooling the ECU to think its colder than it is) you do have to increase the setting as temperatures drop. Generally its not a massive issue as ambient temperatures in the UK don't vary greatly, so realistically you'd be OK and within range keeping it the same. However, it becomes more of an issue at the extremes: If ambient temperatures drop below -5 you do need to start dialling in much bigger increases in additional resistance to gain the same level of "ECU fooling" you had at say 20C. The same applies if you get temperatures above 30C, but it goes the other way, the resistance needs reducing in much bigger steps.

Having said all that, just dial in whatever makes the bike feel best and you won't be far wrong!

__________________