Omc 4.3l won’t stay running after 60 sec

[BR711]

I have rebuilt carb professionally, replaced fuel pump, anti siphon value, fuel line, fuel separator and still same thing starts runs for about 45-60 sec and dies. Pumped throttle as its dieing revs up but dies again. Restarts with throttle right away but dies same as before can anyone please advise

 

[Scott Danforth]

Check fuel pressure

 

[BR711]

Fuel pump is replaced new

 

[Mc Tool]

Fuel pump is replaced new

So you can be 90% sure its not the pump , but its not the only thing involved in getting fuel into the motor . If you can check fuel pressure at the carb inlet and verify there is enough pressure as the engine is dying you can eliminate a lot of stuff