How do I change this thing out. Figured out my fuel issues, got the motor to run but vst tank will not keep up with hp pump. If i take the bottom of the vst tank off, and pump the primer ball, all i get is a small dribble from the needle valve, and i can open it up to flow more, but once the float switch hits the needle, it stays closed and wont open when the float drops..Motor runs for 15 seconds to a minute each time I start.took off the float valve, the needle was stuck in the up postion, took it all the way out, cleaned, put back in, reattached float switch. Once the float switch engages the needle, it will not come back down, stays shut.service manual says you also need to check that the point of the needle valve has the right shape and make sure the float height is within spec. look it up for your motor.

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