We're now straying off the dyno subject a bit, however if the bike (carbs, that is - as a general rule Yanks don't say "carbies") is tuned for the so-called "optimal" A/F ratio in cold/cool weather, it will, as a general rule, automatically run on the rich side in warm/hot weather. The converse is also true - set the carbs up to be "spot-on" in warm/hot weather, & the bike will run leaner in cold/cool weather.
