Fuel pouring out of the air intake

Yamaha XJ 550 discussion forum:


Fuel pouring out of the air intake

Fuel pouring out of the air intake 
Jeff D. said 2007-05-23 04:37 
 
I have a 82 XJ 550. The bike ran fine and now it is pouring fuel out the air intake. I have changed the needle and seats and adjusted the floats. It will idle and then when I rev it to 6000rpms then when I let off it will shoot the fuel out the air intake (coming from the crankcase) I don´t know what else to do. Is it a carb problem or something else like a valve??????? 
 
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