OK, Can someone confirm my suspicion that my butterfly shaft seals have gone bad. Symptoms -bike only runs at higher idle -light carbon fouling on the plugs. -Getting 38mpg So when using starter spray -into the intake the bike dies (should it rev up?)(maybe I'm already running too rich?) -onto the outer butterfly shaft seal area...bike dies -onto the inner butterfly shaft seal area...nothing happens. -around the carb boots and carb boot nipples....nothing happens. To me this seems like I need new butterfly shaft seals. Does anyone know if you can replace the outer one's without removing the shaft and butterflies? Last...how long does this process usually take? I've read as little as 30min but I've never done it before. Hell if its only 30 min I might just have the dealer do it. Thanks for any answers or suggestions.