Possible fuel delivery problem???

Old 07-13-2019, 04:13 AM
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Join Date: Feb 2015
Posts: 44
Default Possible fuel delivery problem???

Boat has twin Yam 250 4s, last w/e port engine would not run over 3k rpm, Starboard engine ok. Back to slip and changed all filters, racor, engine primary, and small plastic U shaped filter near VST, did both engines. Did not change VST filters.
Pumped up fuel lies and filled plastic bowl on Yamaha primary filter, started each engine and noticed fuel drop approximately 2" in bowl and remain at that level, never noticed this before.Is this normal? Ran both engines up in neutral to about 2200 rpm, both held. Did not take boat out to "load test" until I confirmed whether this is normal or not.
Any help appreciated
Fishbum1 is offline  

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