bought new 6 gallon attwood "ventless" red plastic gas tank, running 90 hp yamaha 2/3 throttle and the engine starts bogging down. The primer bulb was sucked flat, went to pump it up and it wouldn,t pump. Took off gas cap from tank and after a minute the bulb would pump again. Seems the new tank was pumping down like a closed vent screw would do. Bought new attwood bulb, hose, etc. and still having issues. ANybody else having fuel issues w/ the new stayle tanks.?
