1966 Evinrude 5 hp running rich!!!!

ianferron

Cadet
Joined
Aug 20, 2011
Messages
23
All started with a dirty carburetor. It was only running with the choke on so I decided to clean it. I found a debris in the little passage on the side of the bowl. I cleaned all the other orifice with compress air. Now it run extremmely rich, it smoke a lot. The only way I can keep it running is to close completely the low speed needle. There is a fix high speed jet so there is nothing to adjust on the high speed side. I run not too bad at idle but when I try to gun it, it hesitate and smoke a lot and eventualy will stall on rich mixture. I am guessing I blew a little piece whit the compress air but I have no idea what.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,196
Re: 1966 Evinrude 5 hp running rich!!!!

Reclean the carb.
Make make sure the low speed jet is clean.
When cleaning with air did you happen to blow anything into the air screw hole?
The gasket around the air screw is it leaking?
What condition is it in?
 

ianferron

Cadet
Joined
Aug 20, 2011
Messages
23
Re: 1966 Evinrude 5 hp running rich!!!!

Reclean the carb.
Make make sure the low speed jet is clean.
When cleaning with air did you happen to blow anything into the air screw hole?
The gasket around the air screw is it leaking?
What condition is it in?

I reclean it and it's still running rich. There is 2 tiny gasket that seal the low speed screw, they look in good shape. I might blow something out of the air screw hole but I have no idea what was there so it's hard to figure out.
 
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