I'm reading about the new Triumph Tiger Explorers and heat is a definite issue. The bike is apparently being manufactured to comply with EU environmental regs and the engines are running lean. Which means hot. So, on this thread........ https://www.tiger-explorer.com/index.php/topic,17249.0.html .......gasoline boiling in the tank seems to be an accepted phenomenon. I've only been riding since August 2014. Is this common among motorcycles? It's somewhat disconcerting regardless.