1994 evinrude 150 emptying carburetor bowls then dies

[markhodges78]

Ok so working on model number J150jlera.
If I pump the bulb until it's hard it will start and run then after running a few minutes idling it will bog and cut off and won't start until I pump the bulb again. My gut is telling me fuel pump but I see there's what's called a vapor pump. Is this what is responsible for pulling the fuel from the tank ?

Thanks Mark

 

[racerone]

No that little pump does NOT pull fuel from the tank.----Find the VRO pump big black plastic housings.

 

[markhodges78]

No that little pump does NOT pull fuel from the tank.----Find the VRO pump big black plastic housings.

Yeah I found the VRO pump I just couldn't wrap my head around how it worked and the manual real doesn't explain it much..but here's how I think it works

The VRO pump creates a vacuum in the vapor separator chamber which draws fuel into the chamber where the vapor is removed from the fuel then the liquid goes into the VRO to mis with the oil (no long use as the fuel is premixed) then the fuel goes back into the chamber where it gets distributed to the carburetors.

Does this sound right ..

 

[racerone]

Have a look in the vapor separator tank,-----Inspect float valve and internals.

 

[markhodges78]

Ok so it's all fixed the issue ended up being trash in the pump, and the float height in the vapor separator was way to high..