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Johnson 175 accelerating issue

I have a 95 Johnson 175 Fast Strike; feels like it isn't getting enough fuel. When trying to get on plane, it will bog down and shut off. I can push in the key for the choke and it will take off. Not as strong as it use to be but still will get up. While moving it will jump up and down on rpms. Basically it will not stay steady at any rpm. I have taken the carbs apart and put new gaskets and needle. Still running the same. I have a clear inline fuel filter that I installed before the primer bulb and it doesn't stay full. I did install a new primer bulb as well.
 
Pushing the key in to engage the fuel primer solenoid, bypassing the carburetors and having that solve the problem momentarily, indicates that you are overlooking something in the carburetors.

This is usually fouled high speed jets that are located, threaded horizontally, in the bottom center of the float chambers, way in back of the drain screw. Clean them carefully with the blunt end (not pointed) of a piece of single strand steel wire as solvent just doesn't do that job properly.

A special tool type screwdriver (#317002) should be used to remove them as a normal screwdriver tip will usually result in damaging them.
 
Thanks I will try and clean the carbs again. How can I check the VRO pump to determine if it is starting to fail. I have heard of people taking it off but I am not sure if I want to go that route
 
If having someone constantly pumping the fuel primer bulb (acting as a manual fuel pump) cures the problem, that indicates a failing fuel pump.

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(VRO Changeover Judgement Call)
(J. Reeves)

The VROs first came out in 1984 and have been upgraded quite a few times. In my opinion, back around 1988, they had perfected them but I think that they were upgraded even more since then. As long as the warning system is operating as it should, I feel quite at ease with them.

Some boaters have voiced their thoughts such as "What if that overpriced plastic horn should fail while I'm under way for some reason, and the VRO decides to fail five minutes later?" Obviously that would result in a big problem which really brings their fears into view.

The word "ease" is the key word though. If one has the slightest feeling of being ill at ease with that setup, then they should take the route they feel more at ease with. A judgement call each individual would need to make on their own.

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(VRO Pump Conversion To Straight Fuel Pump)
(J. Reeves)

You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup (and fuel restriction warning if so equipped) by doing the following:

1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. Trace the wires from the back of the VRO to its rubber plug (electrical plug) and disconnect it.

2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.

3 - Mix the 50/1 oil in the proper amount with whatever quantity fuel you have. Disconnect the fuel line at the engine. Pump the fuel primer bulb until fuel exits that hose with the tint of whatever oil you used. Reconnect the fuel hose.

That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off.
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Need to test fuel presure out to carbs(manual).A leaking/warped top on bracket will cause problem also as VRO cannot pull fuel as fuel chamber is a vacuum(thus the vapor pump on top).
 
Thank you everyone for the help.

Faztbullet, what do you mean by leaving/warped top on bracket? Sorry I am still trying to learn more about this engine and outboards. I will try and work on it since more tomorrow afternoon
 
#72...….
[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]http://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1997&hp=150&model=E150GLEUE&manufacturer=Evinrude&section=Fuel+Bracket+%26amp%3B+Components[/FONT]
 
I have check the top on the fuel bracket and it looks good to me from what I can see. But i did notice that two of the float bowls are leaking a very small amount. Looks as if the float bowl is warped a little. Is it possiable to lightly sand the float bowls to make them even?
 
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