1983 2hp Evinrude Carb Question

[johnny81]

Many Thanks in advance for your help.

I have recently purchased a secondhand Evinrude 2hp Outboard (model E2RCTD). I am completely new to outboards and this engine ran great in the sea for about 40 minutes before giving up and I cannot get it started again. I have replaced with freshly mixed fuel - checked all fuel lines, changed the spark plug and have now dismantled the carburetor. I would be grateful if someone could identify the hole indicated with my little finger in the picture below as I cannot blow through it and have tried pushing a small piece of wire down this without success. Is this a problem?

 

[Joe Reeves]

Re: 1983 2hp Evinrude Carb Question

That hole would be the fuel passageway to the upper slow speed needle valve area. Applying pressurized air to it should cause air to flow out where the slow speed needle valve would normally screw into the carburetor.

Pressurized air applied to the slow speed needle valve hole would cause air to flow out that pictured hole and also out of the small idle holes in the top area of the carburetor throat in back of the throttle butterfly.

(Carburetor Adjustments - Two Adjustable N/Vs)
(J. Reeves)

Initial settings are: Bottom high speed = seat gently, then open 1 turn out. Top slow speed = seat gently, then open 1-1/2 turns.

Setting the high and low needle valves properly:

NOTE: For engines that DO NOT have a shift selection, obviously there is no NEUTRAL position. Simply lower the rpms to the lowest setting to obtain the low speed needle valve adjustment.

(High Speed) Start engine (it will run pretty rough), shift into forward gear, take up to full throttle. In segments of 1/8 turn, waiting for the engine to respond between turns, start turning in the bottom high speed needle valve. You'll reach a point whereas the engine will either start to die out or spit back (sounds like a mild backfire). At that point, back out the needle valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest setting.

(Low Speed) Slow the engine down to where it just stays running. Shift into neutral. Again in segments of 1/8 turns, start to turn the top needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running. Eventually you'll hit the point where the engine wants to die out or it will spit back. Again, at that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting.

When you have finished the above adjustments, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.


Trying to Push a wire thru thru it is impossible due to the change in angles of the passageway.

 

[johnny81]

Re: 1983 2hp Evinrude Carb Question

Many Thanks for your prompt response. I found a small piece of fluff jammed in by the needle! I have managed to remove it and now all holes seem clear!! Unfortunately the motor still does not want to run, but I will start a new thread as this no longer seems to be a carb problem.

Thanks once again!