You don't have to take the faring off to get at the cable, take the tank off and it's right there? In fact everything is right there, best part about this bike is that most of the time you just need to rotate the tank 90 degrees and you can reach most everything you need to service it. Buy a new fuel filter if you can and replace that (bottom of tank) then check the slow running screw in the middle of the carbs, give it a shot of WD40 or some such, especially right up to the end of the thread, don't forget to also lube the spring and actuator as they get crusty and make the engine slow to drop the revs.