Have another theory, more too do with fuel and carb though.
Have you done the carb slide mod?
Might have something to do with it in a roundabout way.
Carb and airbox set up is a bit different to what they have in the US.
134 main jet as standard for one, and 300 airboot...etc

 

I know i'm not icing for a fact.......stuffed my head in there......(where is there?) .....I have an honest cutout....like said....a kangaroo or a monkey just taps the switch.....My humidity levels have never reached that point while riding to make the carb freeez up!!!