1977 evinrude 35 hp will start and run til just when you accellerate

[Wisc87-115-guy]

Still the same ALL jets cleaned and checked with magnifying glass! Does anyone know the float height adjustment? Thanks

 

[tomhath]

When you say all jets cleaned, did you also clean the idle circuit? That's often the cause of a stumble when you first open the throttle.

 

[Joe Reeves]

When one says "all"... you're really not saying which jets you actually cleaned.

The high speed brass jet is located "horizontally" in the bottom center portion of the float chamber, way in back of the drain screw. It needs to be cleaned manually with the blunt end (not pointed) of a piece of single strand steel wire as solvent doesn't do that job properly. Did you do this? If not, do so.

That brass jet needs to be perfectly clear... anything less and the engine will fall on its face as throttle is applied.
********************
(Carburetor Float Setting)
(J. Reeves)

With the carburetor body held upside down, the float being viewed from the side, adjust the float so that the free end of the float (the end opposite the hinge pin) is ever so slightly higher (just ever so slightly off level) than the other end. And when viewed from the end, make sure it is not cocked.
********************

 

[Wisc87-115-guy]

Had main jet out sprayed liberal amounts of cleaner in all openings had slow jet out, ill go threw it again tto double check, next is to bring to service place I know. Thanks

 

[jimmbo]

When you cleaned the carb, did you remove the welsh plugs over the idle discharge circuits? A lot of crud can remained untouched in there.

 

[lindy46]

Running on one cylinder? Bad fuel pump?

 

[Wisc87-115-guy]

Fuel pump is working guess ill have to get a kit unless I can get just the welch plugs, recleaned carb tonite sprayed amsoil power foam and let it work for 1 hr all kinds of crud settled in bottom of bowl! Rinsed it out with carb clean and refilled bowl and put low s peed needle high jet etc in bowl of power foam to let sit overnite going to recheck in am with mag glass and reassemble after blowing out with some canned air I got
today, hopefully shell run now.

 

[Wisc87-115-guy]

When one says "all"... you're really not saying which jets you actually cleaned.

The high speed brass jet is located "horizontally" in the bottom center portion of the float chamber, way in back of the drain screw. It needs to be cleaned manually with the blunt end (not pointed) of a piece of single strand steel wire as solvent doesn't do that job properly. Did you do this? If not, do so.

That brass jet needs to be perfectly clear... anything less and the engine will fall on its face as throttle is applied.
********************
(Carburetor Float Setting)
(J. Reeves)

With the carburetor body held upside down, the float being viewed from the side, adjust the float so that the free end of the float (the end opposite the hinge pin) is ever so slightly higher (just ever so slightly off level) than the other end. And when viewed from the end, make sure it is not cocked.
********************

Thanks ill check, all jets needles etc have been soaking all night in my power foam.