mercury motor

[artcarney_agr]

How's your fuel lines looking? Sounds like you might have a pinhole in it somewhere that's causing the pressure to bleed off while sitting for a long period.

Normally an EFI doesn't have a choke. I've got a 200 EFI and even thought the ignition switch says push to choke, there isn't one. I was always told that when starting, turn the key switch on, and wait a couple of seconds before trying to start which allows the pressure to build.

[gilly]

i'm not sure about your engine but many efi mercs will richen the fuel mixture controlled by the computer. holding your choke in without cranking simultaneously does nothing. crank and push key in and hold. continue holding it in until engine starts and continues to run. if it starts to die, push it in again.