My 200 optimax has a little hiccup when i take off for the first run when i get to the lake . It has happened the last 3 times. I mash the throttle and it starts to takes off and then goes bah, bah and then acts like its starving for gas then the power kicks in and jumps upon plane. I have pumped the bulb and it feels soft but you can hear the gas going through. I switched tanks on monday and it did it still. Once i get going it will not do it anymore. Fuel filter has not been changed in a year. Does the opti have a fuel pump. Where would i need to look first. Thanks. Brian Chance, 99 – p 3