to start the bike i have to have the choke open almost everytime unless its very hot outside (by the way i live in vegas). a minute later i close the choke & it runs like a charm for 10 to 15 minutes then idle runs high, & the hotter the engine the higher the idle, & i mean very high. what can i do? plz help. last month i took it on the freeway for a 50 mile ride (it was 117 degrees that day) i suffered wind burn. a half hour after parking it in the garrage my wife told me the bike is hissing and strong gas smell in the garage, i went to check it out the hissing was comming from the gas tank cap. is it possible for the bike to run so hot that even half an hour after parking it with the engine off the gas tank is still hissing? this is my first touring bike plz help.