Just bought a 2005 750 brute force. The bike was not rode often by previous owner but motor was completely rebuilt. When i first got it it ran good and had plenty of power just has a small miss in it so i figured the carbs needed cleaned so i did and still wasnt quite right so after a while i cleaned them again but no luck. The miss is gone but now it has a slight hesitation on takeoff and it will barely run 50mph. It has new ngk plugs and the fuel pump is pumping plenty of gas and ive checked the valves and they seem fine. Its got me stumped i dont know what else to do some some help would be appreciated.