Hi. Be keen to hear more about the exact circumstances when it has the issue. Are we saying that you go from full throttle back to idle quickly and then it will die ? Does it happen if you pull back slowly ? Is it happening exactly when the following surge of water approaches the stern as the boat sinks down off plane and into the water ? Does the boat have a normal set up or does she have straight through transom exhausts?
Thanks for responding. I can only run the unit in the test tank so its not water surge. It is easier for the motor to stay running if gently pulled back from WOT but it sometimes dies anyway. Motor only has 300 or so hours and is in good shape. Fresh water boat with no corrosion. Basically a new boat. I work on boats every day and this one has me stumped. Don't like admitting I cant figure it out but there is always someone that knows more than I, especially with a unit I've never worked on.
That's a lot
Probably the right direction. Best to start with a full tune up. Cap/rotor, plugs, wires, fuel filters.....surprised to see all the components replaced prior to your suspicion of the routine maintenance ignition components.
Its a big tank with capability of full throttle and all the lakes are frozen so I cant lake test.
Came in for fuel pump. Pressure was only 12 psi. Pressure now is at specs. Just inspected cap, plugs and wires and no sign of any problem with ignition system.
I don't have a dyno yet.
That’s maybe not a great idea.
