73 evinrude,don't seem to be getting gas

[bsandy56]

73 evinrude 18 h p electric start. No ser. # on motor. I bought this pontoon that has been setting since 2002. First off it didn't have fire to the plugs. I pulled the flywheel and the key was sheared so i put new points and condenser. It ran pretty good in barrel so i put it in the water. On the way back to the dock a bolt came loose in the rewind starter and ruined that. O K , It is electric start so i can live with out it. Now it will start after chocking it but dies after that gas is gone. Just don't seem to be getting gas .Do you think it is the fuel pump?...........B Sandy 56

 

[Joe Reeves]

Re: 73 evinrude,don't seem to be getting gas

If there is no obvious air/fuel leaks between the fuel supply and the fuel pump, and this includes any minor leaks at the plug on connectors, pump the fuel primer bulb when this problem exists. If this causes the problem to cease, then I would strongly suspect the fuel pump.

 

[bsandy56]

Re: 73 evinrude,don't seem to be getting gas

I tried as Joe suggested and it dosen't do any difference. Soon as the gas after chocking is gone it dies. I think it is the fuel pump. Can you buy a rebuild kit or should I purchase a new pump?....B Sandy...

 

[ezeke]

Re: 73 evinrude,don't seem to be getting gas

You can buy a rebuild kit for the pump, but if putting pressure on the primer bulb did not do anything, it is not the pump, it's the carburetors.

 

[Joe Reeves]

Re: 73 evinrude,don't seem to be getting gas

Sandy, you replied "I tried as Joe suggested and it dosen't do any difference".

I believe you misunderstood what I said.

If when pumping the fuel primer bulb, the engine runs okay...... then there is the difference. that is the problem ceases ONLY as long as the fuel primer bulb is being pumped.

BUT when you stop pumping that bulb, the engine stops running. That indicates a faulty fuel pump.

 

[bsandy56]

Re: 73 evinrude,don't seem to be getting gas

It won't run by squeezing the primer bulb. I turn it over with the choke out and it don't start. Then i close the chock off and it will start and run till that gas runs out. I've tried chocking to keep it running and that don't work either. Niether squeezing the bulb or chocking will keep it running. I sure don't understand the problem. Thanks for you help.....Sandy....

 

[Xcusme]

Re: 73 evinrude,don't seem to be getting gas

Sandy....

Remove carb
Clean carb with carb cleaner
Blow out passages with compressed air
Install carb rebuild kit
Install carb

Set needle valves per J. Reeves:

(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, wating 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.