The motor. Now before you all get on the "powdercoating holds in heat" bandwagon, I would like to hear well thought out opinions. My first thought is that Harley Davidson powdercoats half of their engines and the other half are chromed. I'm not sure which is worse, they're both bad at dissapating heat. The harley davidson motor is also about the most arcaich (Yeah, I know it's spelled wrong) of motor designs and they are also air cooled. Apples to Apples? Do Nortons run notoriously hot? Kick it around, tell me what you think.