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I have a 93 mercruiser 4.3 bravo 1 Gen 2.. Been having acceleration…

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I have a 93 mercruiser...
I have a 93 mercruiser 4.3 bravo 1 Gen 2.. Been having acceleration issues used to jump on plane. It will run good once it gets going but Im at full throttle used to run like crazy at half throttle any ideas
Submitted: 3 years ago.Category: Boat
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Answered in 2 minutes by:
6/20/2015
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Tan
Tan, MerCruiser Certified Technician
Category: Boat
Satisfied Customers: 11,422
Experience: 40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.
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Hello. When was the last time you did a full tune up? When did you have the carb rebuilt? Could I get the engine serial number please?
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Customer reply replied 3 years ago
spent last season tuning eveything, this spring they redid carb was only thing I had not done, under load I couldnt get the boat above 2000 rpm, once we changed fuel and separator it would go, it just wont get up and go. I used to have 5 people on board and it would jump not if I have 1 he has to be up front to get it on plane, then it goes like hell. dont have serial number
Customer reply replied 3 years ago
thats why I am wondering if I have a filter clog someplace else
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
This cound be a fuel supply issue from the boat side fuel tank. The fuel pick up tune in the tank has a screen filter on the end of the tube. This can get clogged and cause a fuel restriction. Try this run the engine on a different fuel supply like a gas can. Post back with findings.
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Customer reply replied 3 years ago
will give it try and let you know
Marine Mechanic: Tan, MerCruiser Certified Technician replied 3 years ago
Ok.
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