1985 40hp Johnson Outboard Dead Cylinder

vsiche1

Recruit
Joined
Feb 12, 2013
Messages
2
Hello, I am working on a 1985 johnson outboard with a dead cylinder. I cannot seem to determine the cause of it being unable to fire. It seems it is getting to much fuel from the carb. The carb is clean and is well adjusted apparently because the other cylinder is firing perfectly and this carb supplies fuel and air to both cylinders. Compression is fine and the head has just been replaced. I have not checked out the fuel pump or timing yet but, the electric primer seems to leak a bit until the engine heats up. The reed valves also have no damage to them. Any advice would help. Thanks.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1985 40hp Johnson Outboard Dead Cylinder

Got a model # for the mtr ??
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1985 40hp Johnson Outboard Dead Cylinder

That model # doesn't make sense for a 40 hp.
 

likitvi

Petty Officer 2nd Class
Joined
Aug 7, 2011
Messages
138
Re: 1985 40hp Johnson Outboard Dead Cylinder

Check spark and then timing first. The single fuel pump is also feeding the only carb that is operating atleast somewhat, which is enough for now.
 
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