My 2005 Piaggio Typhoon seems to be guzzling gas. It's got a technigas RS pipe and the carb has been upjetted (done by shop). It seems to run fine - although it's not crazy about cold morning starts (5-9C). Recently I've noticed the fuel consumption is higher. I may get in about 3-4 trips to work - a total of 100-110km per tank. Is this about right? I believe the the tank holds 7.5L including the reserve. If fuel consumption is up, could it just be the addition of the Technigas Pipe and upjetting of the carb? Maybe the cold weather? I haven't looked at the air filter recently but it was fine about 2 months ago.