I recently bought a different boat that came set up with a yam 9.9 four stroke kicker, it ran fine for the first couple of trips but on the third trip it cut out after running for about and hour.
I noticed that the primer bulb on the line had been sucked in, I squeezed the bulb a few times and restarted the the motor no problems. After 5 min I noticed a ticking sound coming from the motor and the primer bulb was getting soft. When I squeezed the bulb the ticking sound went away. I was told to replace the check valve in the fuel tank which i did and also replaced the fuel line from the water separator to the kicker because the internal diameter was too small. This really didn't make a difference. My question is has anybody ever had an issue like this and should I replace the fuel pump? or does it sound like a fuel starvation problem.
Thanks in advance for any advice.