1999 Mercury 200 EFI will not start

[Viper]

Due to problems beyond my control, my boat has sat for over a year with gas in it. Gas turned bad. When put away ran perfect.<br /><br />Batteries fully charged. Fresh gas in it. Still won't start. Will fire, but will not run.<br /><br />Is there anything the average guy can do to try to get it up and running again.

 

[rodbolt]

Re: 1999 Mercury 200 EFI will not start

does the fuel pump turn on for 2 seconds when the key is first turned on?<br /> a standard automotive fuel pressure test guage will attach to the shrader valve on the fuel rail, fuel pressure shoud be 30-35 PSI .<br /> no fuel pressure means no fuel or lubrication so leave off the starter fluid.<br /> a few squirts of gas premixed at 50-1 down the air valves will allow it to fire off but my guess is the fuel pump locked up.