Rebuild 1977-85hp carburetor

John Drew

Seaman
Joined
May 24, 2008
Messages
68
I have a 1977 Evinrude 85hp motor I just bought. I replaced the fuel pump cleaned out the carburetor and let Seafoam set in it overnight. and now it runs like a "scaulded dog" with the water mufflers. I siphoned out the gas and put in fresh gas with Seafoam and let it run for 15 min while I mowed the front lawn.

When I tried to launch it into the lake, it would start easy but would die when I put it into reverse and put a load on it.

I took it to a repair shop and they said it needed to have the carburetor rebuilt and would cost $600.

How difficult is it to rebuild? I have rebuilt several from 9.5 to 20hp but there ae jets on the side under screw that I don't know how adjust.
 

John Drew

Seaman
Joined
May 24, 2008
Messages
68
Re: Rebuild 1977-85hp carburetor

I purchased two carb repair kit and was not that difficult. Now I don't know how to adjust the orfice idle screw. I have it in all the way now. Also there is a little white plastic about 1/8 inch tube shape but don't know where it goes. I may be for another model.
 
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