I am getting stumped. I replaced a powerhead on this one, new fuel delivery pump, new high pressure pump in the VST. Replaced all fuel lines, have no kinks in them. I double checked all the fuel hose routing. Sent injectors to Mercury dealer for tests, all good. I have spark on all 4 cylinders so its not an ignition problem. when it starts up it idles perfectly for about 1-2 minutes. the fuel primer bulb is not getting soft. Could it be something in the VST? Like I said, I am stumped. will gladly look into any ideas you may have.
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