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Discussion Starter #1
My father and I took my boat out this eveing. After cruising about 4 miles we stopped for a bathroom break. After sitting for 5 minutes I tryed to fire up the engine with no luck. Sat there for a minute and tryed again. After 10 minutes of smelling gas we finally got it to fire up.. Then cruised a few miles and opened it up. When i pushed the gas all the way down the engine would bog down and begin to stall till i took my foot out of it and pumped the throttle a bit any idea? Maybe the carb need tweaking
 

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My father and I took my boat out this eveing. After cruising about 4 miles we stopped for a bathroom break. After sitting for 5 minutes I tryed to fire up the engine with no luck. Sat there for a minute and tryed again. After 10 minutes of smelling gas we finally got it to fire up.. Then cruised a few miles and opened it up. When i pushed the gas all the way down the engine would bog down and begin to stall till i took my foot out of it and pumped the throttle a bit any idea? Maybe the carb need tweaking
replace it
 

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sunk float is when the float has a hole in it and is full of gas. the float wont rise to close the needle and seat and floods the engine.
 

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Discussion Starter #7
sunk float is when the float has a hole in it and is full of gas. the float wont rise to close the needle and seat and floods the engine.
Would that only happen when its running wide open? When it was idleign it smelled rich..
 

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Give The Carb A Good Cleaning
Check All Fuel Lines For Leaks/Clogged/Pinched Etc.
Clogged Fuel Filter?
Water In Fuel?
Check Fuel Pump
Check Fuel Pressure
Check Ignition Also Cap/Rotor/Good Spark.
 

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I'm with Futs on this one. Check the simple stuff first. Needle and seat and the float. First and foremost check the fuel pressure at idle and WOT. Is it an electric or mechanical pump? There is a fairly large jet crowd in the DFW area that are more than willing to help another jet owner out. Nothing against PB. The help here is fantastic, just sometimes it's better to have someone actually put an eye ball on it.
 

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My father and I took my boat out this eveing. After cruising about 4 miles we stopped for a bathroom break. After sitting for 5 minutes I tryed to fire up the engine with no luck. Sat there for a minute and tryed again. After 10 minutes of smelling gas we finally got it to fire up.. Then cruised a few miles and opened it up. When i pushed the gas all the way down the engine would bog down and begin to stall till i took my foot out of it and pumped the throttle a bit any idea? Maybe the carb need tweaking
sounds like it is running out of fuel and laying over on the big end?
 

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Discussion Starter #12
sounds like it is running out of fuel and laying over on the big end?
Yes sir, just took the fuel filter off. They look good, going to replace them though. Fuel lines don't seem clogged either. How would I check fuel pressure? My boats going 55 or at 3500 rpms..
 

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Someone say Oldsmobile ? ? ?

well there's the problem right there ! you got to get it down to 45 mph @ 3500 rpm .............. :)devil

seriously tho take the oil stick out and see if it smells like gas ... mine would sink the float and fill the cylinders with fuel ... not good for engine longevity.
 

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Electric or mechanical fuel pump?
What is the pressure when this occurs?

I had a summit elec pump.
The regulator screw on the pump backed out a little and the pressure went from a normal 5-7 psi, up to 14 psi and flooded my carbs.

Tightened it back up.
Problem solved.
 
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