I have a 96 stratos 201 pro xl with a honda 225 on it. Primer bulb will not stay tight after motor runs for a little while. Primer bulb will stay tight if you pump it up and dont start the motor, It has stayed tight for 3 days now. The bulb is not getting sucked flat it just gets soft to the point that it feels empty. I have replaced fuel lines from the motor to the tanks as well as replaced the selector valve between the two tanks. I have removed anti siphon valves too. Both vents are breathing as they should. My question is do i unscrew the 90 deg fitting and hold the nut that is flat against the tank to remover the pickup tube. Will the tube come all the way out? Just to mention i have replaced all fuel filters and replaced the high pressure fuel pump on the motor. The only piece that hasnt been replaced on the motor is the low pressure fuel pump and it is mechanical so i doubt that it has failed. Looking for help removing the pickup tubes to inspect and clean the screens. Thanks