Fuel intake issue (I hope)???

[peterb]

I recently bought a 1978 Seacraft FS. It has twin 1998 SW series HP engines, w/Raco fuel filters.

I had the filters changed out and the boatyard (which is 2 hours away said everything ran fine).

I just turned over the engines. One engine ran fine and the other did not. The one that sounds like its operating several cylinders short has a fuel bulb that i cannot get hard. Hence I think that I may have a fuel inflow problem. i called the boatyard and they say that I should check my lines, but that the fuel filter has to be fine.

On my Yamaha fuel management system it alarms with the "bad engine". It looks like that it is indicating a water seperator alarm.

Some quick questions.

How do i check this? Do I remove the screw at the bottom of the filter in question?

Would this restrict my fuel inflow?

Has anyone ever experienced a problem like this?

Any other ideas & input would be greatly appreciated.
Thanks,

Peter