'84 Evinrude 140 carbs flooding?

[Thump05]

I need some expert help again. Here is what I have done:
Rebuilt carbs
replaced fuel tank
replaced all fuel lines

The engine runs pretty good, but it sounds and acts like it is flooding at an idle. This was not the initial problem. This is a new problem since I did everything above. I bought the service manual for my motor, at least it lists my motor on the cover. When you get to the carb section for removing and replacing-rebuilding, all the chapters are everything but my motor, so I had to just make do.

Here is one thing that makes me suspicious. I used to hear a distinct click when I flipped the choke switch, and now I dont hear that any more. When the choke switch is activated does it do something to the fuel primer solenoid or what? I cant see anything that it would do to the carbs themselves. I'm thinking maybe it is stuck in choke.

Any help would be greatly appreciated.

 

[ezeke]

Re: '84 Evinrude 140 carbs flooding?

Yes, the primer solenoid is a valve that allows fuel to flow around the carburetor and enter the intake dierectly. It's purpose is to enrich the fuel to air mixture for cold starting the engine. You do not have chokes.

The red handle on the primer solenoid should be aligned with and parallel to the cylindrical base to work electronically as it should, otherwise, it will allow the fuel to run ifreely and flood the engine.

Test to be sure that, in addition to the audible click, the fuel is not flowing out of the primer solenoid valve unless you are pushing in the key.

If you find that it is allowing fuel to flow, inexpensive kits are available to repair the valve. You can also upgrade the primer solenoid with a schrader valve for de-carbon treatment and fogging.

 

[Thump05]

Re: '84 Evinrude 140 carbs flooding?

OK, so I disconnected the top little fuel line going from the primer to the top carburator and pumped the fuel bulb and fuel came out freely and I was not activating the choke switch. So that means the primer is stuck open, right? I took it apart and cleaned it and everything looks fine, it just won't activate with the switch anymore. Any ideas now? Thanks!
JB

 

[Thump05]

Re: '84 Evinrude 140 carbs flooding?

OK, this morning I figured out that the switch on the control is bad. I just ordered one. Can someone tell me how to test the primer so I will know that it is working correctly? I disconnected one of the little fuel lines that goes from it to the top carb and squeezed the primer bulb and gas came out. Is that normal with the choke switch not activated? Thanks again!
JB

 

[basspirate]

Re: '84 Evinrude 140 carbs flooding?

if you take a hot lead with a momentery switch and put it into the lead coming off the primer solenoid you should get a quick little squirt of fuel. alternativetly you could just take a hot lead and tap it to the primer lead just make sure the gas squirts into a bottle otherwise you might have a fire on your hands.make sure you take the lead off the primer solenoid first. like someone else said also make sure the red switch is in the proper position and dont do more than a quick tap as you might burn out the solenoid

 

[basspirate]

Re: '84 Evinrude 140 carbs flooding?

oh yeah regardless of weather there is fuel in the lines or not you should hear the click

 

[Thump05]

Re: '84 Evinrude 140 carbs flooding?

if you take a hot lead with a momentery switch and put it into the lead coming off the primer solenoid you should get a quick little squirt of fuel. alternativetly you could just take a hot lead and tap it to the primer lead just make sure the gas squirts into a bottle otherwise you might have a fire on your hands.make sure you take the lead off the primer solenoid first. like someone else said also make sure the red switch is in the proper position and dont do more than a quick tap as you might burn out the solenoid

Is this while the engine is running or stopped?

 

[basspirate]

Re: '84 Evinrude 140 carbs flooding?

do it with the engine stopped. also check the engine fuse. i had a problem with the fuse stopping the solenoid from operating.

 

[ezeke]

Re: '84 Evinrude 140 carbs flooding?

Notes:

If the fuse is bad, nothing will work from the ignition switch.

The primer solenoid is just a valve, not a pump. If you don't have pressure on the fuel supply, nothing will come out of it.

 

[Thump05]

Re: '84 Evinrude 140 carbs flooding?

Notes:

If the fuse is bad, nothing will work from the ignition switch.

The primer solenoid is just a valve, not a pump. If you don't have pressure on the fuel supply, nothing will come out of it.

I'm thinking I have the opposite problem. I think fuel is comming out even when the choke switch is not activated. Should gas come out of it, without the choke switch activated, when I pump the primer bulb with the engine stopped?

 

[ezeke]

Re: '84 Evinrude 140 carbs flooding?

"Should gas come out of it, without the choke switch activated, when I pump the primer bulb with the engine stopped?"

No, unless you have the red knob turned to manual or 90 degrees from being aligned with the cylindrical part of the unit.

If it does run out, buy the repair kit - it just takes a couple of minutes to fix. Part #437228 or Sierra 18-0993.

If you want to add the schrader valve, get Part # 175158 or Sierra 18-0871.

http://www.iboats.com/Johnson_Evinr...2838190--**********.923687719--view_id.503919

http://www.iboats.com/Johnson_Evinr...2838190--**********.923687719--view_id.503916

 

[Thump05]

Re: '84 Evinrude 140 carbs flooding?

Great! Thanks all!