'85 75HP Outboard - Excess Fuel in Exhaust?

[Parkstribe]

I own a 1985 75HP 4 cyl Merc outboard that starts great. It has excellent power and runs smooth at high rpm, but it doesn't like to idle and/or run at low rpm's so much. I have noticed that the exhaust spits alot of fuel into the water if I run it in neutral next to the dock for awhile. Also, it seems that one of the carbs spits excess fuel while running. I am presuming that the excess fuel exiting the carb and the exhaust ports is related to the low rpm/idle issue. Any thoughts? TIA ... Fred.

 

[tashasdaddy]

Re: '85 75HP Outboard - Excess Fuel in Exhaust?

i'd say yu have a carb problem, slow idle too rich, or float stuck, and not closing all the way. running fast it will burn the fuel, but slow or idle it is flooding out.

 

[Parkstribe]

Re: '85 75HP Outboard - Excess Fuel in Exhaust?

Thanks. I did have a problem once where the float stuck closed and it wouldn't start. I had to tap the side of the carb with a screwdriver to unstick the float so it would start. Sounds like the float is the first thing I should try. Thanks ...