I have a 2010 Gade Adrenaline with an 800r Ptek that got 4mpg on several tanks of fuel over the weekend. Rode near Munising, MI in temperatures of 35-40 degrees F. Issue remained across two riders, but fuel mileage would return to normal when the rpms were maintained at 6000 rpm and braking was minimized. Recently cleaned the carbs. Sled seemed to be overloading the fuel and would badly bog off the trail. Is this an ECM issue due to the warm temperatures or a carb jetting issue? Any ideas would be greatly appreciated. Normally this sled gets 10-14 mpg depending on how its ridden.