08-01-2008, 06:54 PM
First off I am assuming your mixing your gas and oil and the motor is not oil injected.If not this is most likely the problem.
I ran into this problem when I first bot my boat,the previous owner did not run the fuel out of the motor when leaving the lake,with the motor in the up position this allows the fuel in the carburetor float bowl to drain out the air orifices in the front of the carburetors and when the fuel evaporates it leaves the oil behind and clogs the ports off.if you look at the carb. there below the throat of the carbs or in the center there tiny little holes,you can fix this with carb cleaner,but the hood has to be off and the boat needs to be on the water,take the intake cowling off the carbs,have someone run the boat at full throttle while you spray the carb cleaner into theses orfices(with the little straw that comes with the can of carb cleaner) at full throttle the carbs will suck the carb cleaner threw and you will instantly fill the power come back,make sure you hit all of theses orfices,be prepared for this extra power and dont fall out of the boat.the reason the additive doesn't work is the fuel is getting to the carb the float bowls are not able to breath and let the fuel go threw the system fast enough,so idle is great,full throttle isn't.always run the fuel out of your motor when you trailer your boat and this problem wont come back.I have done this for over twenty years and have had no problems with any of my outboards.5hp to 90hp also run seafaom thru your motor regulary.
later fnf[cool]
[signature]
I ran into this problem when I first bot my boat,the previous owner did not run the fuel out of the motor when leaving the lake,with the motor in the up position this allows the fuel in the carburetor float bowl to drain out the air orifices in the front of the carburetors and when the fuel evaporates it leaves the oil behind and clogs the ports off.if you look at the carb. there below the throat of the carbs or in the center there tiny little holes,you can fix this with carb cleaner,but the hood has to be off and the boat needs to be on the water,take the intake cowling off the carbs,have someone run the boat at full throttle while you spray the carb cleaner into theses orfices(with the little straw that comes with the can of carb cleaner) at full throttle the carbs will suck the carb cleaner threw and you will instantly fill the power come back,make sure you hit all of theses orfices,be prepared for this extra power and dont fall out of the boat.the reason the additive doesn't work is the fuel is getting to the carb the float bowls are not able to breath and let the fuel go threw the system fast enough,so idle is great,full throttle isn't.always run the fuel out of your motor when you trailer your boat and this problem wont come back.I have done this for over twenty years and have had no problems with any of my outboards.5hp to 90hp also run seafaom thru your motor regulary.
later fnf[cool]
[signature]