I remember a 300 mile trip in about 1993 in cold rain when the carb on my wife's FXR iced up and mine didn't. She had a SE butterfly carb and I had a Mikuni HSR40 on my FXST 
I also remember the carb on my mate's Vauxhall Viva icing up on a stinking hot humid day. It was about 1968 and we were coming back from the coast.

I also remember the carb on my mate's Vauxhall Viva icing up on a stinking hot humid day. It was about 1968 and we were coming back from the coast.

... Just started school.......