Tohatsu throttle problem

Emerger

Petty Officer 3rd Class
Joined
Oct 29, 2006
Messages
98
Hey all. I have a 2008 Tohatsu 9.8hp that will only start or idle with the throttle wide open. I can see the carburetor open when the tiller handle is turned, but the engine still just idles.
 

pvanv

Admiral
Joined
Apr 20, 2008
Messages
6,558
Model 9.8A3? Is it so rich that the full throttle gives it enough air to run? What do the plugs look like?
 

Emerger

Petty Officer 3rd Class
Joined
Oct 29, 2006
Messages
98
Plugs are clean and good. And I changed the carburetor. I'm planning to change the fuel pump later today. But there's something about the air you mentioned. It will only start with the throttle wide open and the choke completely open as well. Even with that it only idles.
 
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