Logo

engine won't rev past 3000 rpms under load

chasmans

New member
I have a 1982 Wellcraft cabin cruiser with twin inboards. The motors are chevy 305 228 hp . I am having problems with both engines won't rev past 3000 rpms under load. They will rev past 3k under no load. Carb has been rebuilt and has no problems with starting. Rebuilt by reputable person. The tank has no obstructions . Filters changed. I don't no why both motors perform the same. Boat sat for 12 years , but has been refurbished .Fuel pumps changed plugs wires . Have not replaced the cap but it looked good. When I first got boat it planed very easy and achieved 4500 rpm. Repowered in 2004 and all was well. Any ideas ?
 
Last edited:
Back
Top