Johnson 115 HP 2 stroke 2004

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After service, rebuild the carburator, clean the fuel tank, and compression checked was ok.
The engine fuel overflow "flooded with fuel" and turns off, when we in the ocean in other words when the engine in the water and have a pressure on it. But if I run it on hose at home it works just fine.
Any idea why is that happens?

 

[[email protected]]

After service, rebuild the carburator, clean the fuel tank, and compression checked was ok.
The engine fuel overflow "flooded with fuel" and turns off, when we in the ocean in other words when the engine in the water and have a pressure on it. But if I run it on hose at home it works just fine.
Any idea why is that happens?

This happens after warm start !!! After I turn the engine off to stop for fishing , then turn it on again to move back to the marina.

 

[kevinj]

After service, rebuild the carburetor, clean the fuel tank, and compression checked was ok.
The engine fuel overflow "flooded with fuel" and turns off.....

What do you mean "flooded with fuel and turns off"? Is fuel coming out the front of the carbs? Or, do you just mean the engine burbles, fouls the plugs, and dies?

When you rebuilt the carbs did you install a new needle and seat? Also, did you check the float level? When setting the float be sure to hold the carb upside down and observe the side of the float closest to the carb body. This surface should be exactly parallel to the body or just a hair tipped up at the end opposite the needle valve. Here is a guide on servicing the carbs: https://youtu.be/x4AeAX6l8-M

Hose muffs don't always let you see the real health of the engine and the load created by the back-pressure in the water will show you exactly how it's really running.

 

[[email protected]]

What do you mean "flooded with fuel and turns off"? Is fuel coming out the front of the carbs? Or, do you just mean the engine burbles, fouls the plugs, and dies?

When you rebuilt the carbs did you install a new needle and seat? Also, did you check the float level? When setting the float be sure to hold the carb upside down and observe the side of the float closest to the carb body. This surface should be exactly parallel to the body or just a hair tipped up at the end opposite the needle valve. Here is a guide on servicing the carbs: https://youtu.be/x4AeAX6l8-M

Hose muffs don't always let you see the real health of the engine and the load created by the back-pressure in the water will show you exactly how it's really running.

Yup the fuel coming out from the front of the carb, then engine bogging down. I have no idea how the mechanic re built the carbs. I might re do it my self if I feel it's easy. Thanks for your reply and for the guide U sent.

 

[kevinj]

Yup the fuel coming out from the front of the carb, then engine bogging down.

Then you most likely have incorrectly set fuel floats. Or, another possibility is the mechanic failed to install a new needle and seat and your old ones are worn allowing fuel to flow past. Either way, those carbs need to come off and be checked again.

KJ