[Sea Note]

Richard and Steve hit all of the right notes in the right order, but if none of them do it I will give you one more - your fuel hoses leading to the pump may be aged/cracked (especially at any bends or near the end) such that they allow air in and cause you to lose prime when they get hot and pliable from engine heat but not when cold on initial startup.

Let us know what you determine.

Best regards,

db