200 optimax bogging

[Michigan Man]

i have 200 hp optimax. fully rebuilt two years. new crank, sleeves, pistons, reeds, air pump.

last summer i got stranded when the fuel line bulb sucked flat and wouldnt release. next day bulb was fine never had another issue.

this year i am having problems with bogging on take off, like its starving for fuel but not every time.

example: i leave dock, power up run a mile, power down idle through channel, power up no issues run several miles out, power down troll for 4 hours(same motor) go to leave power up and it bogs out like its starving for fuel. power down then go slow for awhile and then power up and no issue.

took kids tubing for full day and last pull of the tube, it did it again.

boat has duel gas lines for kicker motor(dont have) switched the lines. first trip out out no issues. next trip out same issue as explained above.

thoughts?

[Michigan Man]

I put new fuel line in from the tank to motor tonight see if that helps.