Ive read in the forums about the vst cleaning and the injectors being cleaned I have cleaned all filters but havent got the injectors proffessionally cleaned yet.The problem im getting is fuel dripping into the breather from the hose coming from the vst tank .The hose comes out of the top of vst and has a inline check to it ,what might cause this to happen. the motor is a 2001 yamaha f115 4 stroke.Took the needle valve out and noticed there is a line around the coated part of the needle valve ,could it not be seating proper.Or could back pressure from the injectors not spraying enough fuel causing the vst to load up. thanks joe