Need your help! Engine bogging while accelerating
#11
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From: Pittsburgh, PA
When you say changed the fuel filter do you meen the water separator on the bottom from the the motor. If so then there is also a fuel filter in the carb behind the inlet fuel line. This will cause a hesitation or stall out when at full throttle. If you only replaced the fuel separator I would replace the fuel filter in the carb first. It's cheap and may fix it so you can do all of the other tune up/ carb rebuilt at a more convient time.
#12
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From: On A Dirt Floor
Steel fuel lines and old gas = corrosion, which will get collected at the carb inlet filter. Done many of these last few years.
To the OP. Is the gas 2 yrs old ? If so, I would get rid of it or burn it at idle speeds only...doh.
To the OP. Is the gas 2 yrs old ? If so, I would get rid of it or burn it at idle speeds only...doh.
Last edited by SB; 07-21-2016 at 10:34 PM.
#14
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From: NW Michigan
When you say changed the fuel filter do you meen the water separator on the bottom from the the motor. If so then there is also a fuel filter in the carb behind the inlet fuel line. This will cause a hesitation or stall out when at full throttle. If you only replaced the fuel separator I would replace the fuel filter in the carb first. It's cheap and may fix it so you can do all of the other tune up/ carb rebuilt at a more convient time.
#15
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Joined: Apr 2005
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From: Washington, MO
You could have some sediment type contaminants in the fuel tank from old gas 'sitting' too long. My brother ran into this issue and when he would be getting on plane the sediment would sometimes restrict the pick-up screen at the rear of the fuel tank and restrict flow causing a bog. If he eased it on plane it would cruise just fine. Took a while to figure this one out! I recommend running on a small remote tank and see if it improves.
#16
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If you do not have thru hull exhaust (like many small blocks), then check to see if your flappers are intact in the top of the Y pipe. These flappers when they break loose will normally find their way into the drive, but sometimes will stay lodged in the Y pipe...where ever the flappers end up, they obstruct the exhaust flow and will cause a hesitation UNDER LOAD and shave off varying amounts of top speed. This is something that often gets overlooked on older boats and has confounded many a mechanic.
#18
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When you say changed the fuel filter do you meen the water separator on the bottom from the the motor. If so then there is also a fuel filter in the carb behind the inlet fuel line. This will cause a hesitation or stall out when at full throttle. If you only replaced the fuel separator I would replace the fuel filter in the carb first. It's cheap and may fix it so you can do all of the other tune up/ carb rebuilt at a more convient time.
#19
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All the fluids including the gas were replaced by my dad and I upon purchase for that very reason. Seems like some carb work is a must. The boats great and in excellent shape for a 95 just want it running tip top shape.
#20
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You could have some sediment type contaminants in the fuel tank from old gas 'sitting' too long. My brother ran into this issue and when he would be getting on plane the sediment would sometimes restrict the pick-up screen at the rear of the fuel tank and restrict flow causing a bog. If he eased it on plane it would cruise just fine. Took a while to figure this one out! I recommend running on a small remote tank and see if it improves.


