This motor starts up and runs great at first. Then after I fish for a couple hrs occasionally it does t want to start. I turn the key and it turns over but that’s it. And it doesn’t do it all the time. Also when it does start sometimes it takes a couple seconds to smooth out. I have changed the lift pumps, added a new primer bulb, cleaned the O2 sensor, and the VST service was just done last year. Also on a couple of occasions when I turn the motor off it didn’t stop right away. It took it a second to completely die. I haven’t changed the plugs yet. When it’s up and running she’s a smooth as can be. And most of the time I don’t have any issues but I got a concerned today when I was several miles from the ramp and she acted like she didn’t want to start. Any recommendations? Thanks!!