I have a 2005 prowler 650 it had sat up for about eight months would not crank so I removed the carb to rebuild. I cleaned this carb very good twice put it back on and still runs like crap keeps making the spark plug black and it idle it puts off this black stinky smoke just riding it the machine runs pretty good. Now my next question is im not sure i have some stuff hooked up right maybe yall can follow me on this fuel line coming from tank comes up into this three fitting piece i know that one is on right but the two coming off in the front i dont know the bottom one is going to carb for the fuel the lower one comes off and goes to intatke boot into a brass fitting and then there is a hose coming from behind the driver seat that goes to a black fitting at the top of the carb like where the diaphragm is does this sound right ? also if you unplug the hose that goes into the intake boot it ildes perfect it will just die after about a min it stops the fuel from flowing. i have already adjusted the air/fuel mixter screw on the bottom of the carb 2 1/4 to 2 1/2 turns out ?