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5.0gi pefs trouble shootp

keithmobile73

New member
2000 fourwinns vista 248 with 5.0gi pefs 1.95 dp. boat only revs to 3400rpm trimmed. I have f4 props, I think I need f3.
boat ran 35mph wot 3200rpm.
when I bought the boat 2 years ago I replaced the fuel pump and it ran as described above but recently at wot it would loose rpm and cruise at around 2600 rpm. if I pump the throttle up and down it will gain power but when I stop playing with the throttle it would loose some power again.
I replaced the plugs wires cap and rotor.
I replaced the anti siphon fitting on the fuel line.
I cleaned the spark arrestor.
trying to figure the next step...
does anyone have any ideas?
maybe check the sensors, anyone have specs on the sensors?
 
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