I recently bought a savage xl and I cant open the carb fully? I have not played around with the throttle linkage or any other components. When I give full throttle on the transmiter the carb only opens 3/4 of the way,when I push it with my finger it opens all the way. It seems like the servo does not rotate enough to open the carb fully? Can someone please help me with this problem? Is this a servo adjustment? Throttle linkage? Thanks.