Merc 225 EFI out of lay-up.. problems.. need help!

[RingLeader]

Its my own fault... I layed her up for over 2 years without running her. I had no choice as the boat isn't finished. <br /><br />Anyway, its a 2001 Merc 225 EFI. I fogged her and layed her up for a while. I built an upright stand so that I could crank her every now and then. <br /><br />I hooked fuel and stuff up to her this afternoon and she fired onthe first try, but won't run. She kills after about 1-2 seconds. She revs right up and kills.<br /><br />I just put fresh plugs in and it did the same thing. And this is brand new gas that she is drinking.<br /><br />Any clues or suggestions?

 

[rabidfish]

Re: Merc 225 EFI out of lay-up.. problems.. need help!

Whats your fuel pressure?

 

[RingLeader]

Re: Merc 225 EFI out of lay-up.. problems.. need help!

I'd like to know what the fuel pressure is as well. I know where to check it, but I don't have the gear to do so.<br /><br />I did get her running though! Not very smooth, but shes running for a few minutes at a time before killing. I had to drain the electronic fuel pump module of the old gas (varnish)... I didn't know that existed (I know jack about motors...) If I had known there was a drain screw there, I would have done so before taking it off the boat and storing her.<br /><br />I pumped it full of fresh gas and she came to life. Now, I have a warning beep (4 long beeps) going off so I gotta figure out what thats all about (I lost my owners manual when I moved this year). At least she is running, but not very good yet... it sounds like she is running on 2 or 4 cylinders, but deffinitely not all 6.