Hello, I have an sm610s husky (04 model) and I'm riding with an FCR 41MX. I'm trying to tune it, it works ok, it pulls strong, but fuel consumption is way too high. I mean, I know, FCR should and must increase fuel consumption, I also know that it runs rich on my bike and I'm working on it, but are these facts enough to make it drink fuel like and 3lt SUV? Right now, if my maths are good, I have approximately 14 liter per 100 km. That is about 20mpg! Full tank to empty --> about 80km.. What could possibly be so wrong? main jet-->180 pilot jet-->50 starting jet--> 85 main air-->200 low air -->100 needle-->4rh position from top
Does the bike show any sign of being too rich? Smell of gas, slow revving when giving it throttle, unstable idle? Check if there are any fresh air leaks. What configuration do you run? Open cans with standard airbox? An overly rich configuration will swallow fuel like no tomorrow. Work on getting the jetting right first and then see. You'd be surprised to see how much the idle jet increases/decreases fuel consumption
