Need some help guys my wife has a 2002 sportster hugger its been sitting about a year I haven't started it in about 4 months tried to start it yesterday it sounds like its only hitting on 1 cylinder i rebuild the carb even though it looked good still not firing on both cylinders i put new plugs in it still same problem any ideas ? Its got an electronic sensor of some sort on the intake not sure what that it ive worked on pans and shovels and evo's but 98 and older this has me stumped