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I have a 2015 Yamaha F15 (Electric Start) that will not run right; I just put a new gas tank, new fuel filter, all new fuel, new spark plugs, carburetor jets just cleaned.
Engine seems to run okay (or at least better, but not great) when I first start it, but after a minute or two it will bog and sputter as soon as you give it gas - sometimes if you feather the throttle you can get it past that mid range and keep it revved up at the high end okay - or, sometimes it will just get there and die out. It acts like its starving for fuel.
I think the reason it runs better at first is due to the Yamaha prime starter needle allowing more fuel - so it seems to maybe have a lean condition once warmed up. I have turned over the starter with the fuel pump line unhooked from the carb and the fuel pump seems to meter out a steady amount of fuel - though its not high pressure, just kind of a small slow stream (again using the electric starter); I also have tried squeezing the fuel hose bulb during the bogging, but this has no affect.
The engine always starts up first turn, idles great. It really does seem like a carburetor issue still, but I just can't see how - the jets are super clean, the float function looked okay, etc. - unless there is something deeper in the carb that could cause this.
I am kind of at a loss as to what to do next - any help or ideas would be appreciated!
Engine seems to run okay (or at least better, but not great) when I first start it, but after a minute or two it will bog and sputter as soon as you give it gas - sometimes if you feather the throttle you can get it past that mid range and keep it revved up at the high end okay - or, sometimes it will just get there and die out. It acts like its starving for fuel.
I think the reason it runs better at first is due to the Yamaha prime starter needle allowing more fuel - so it seems to maybe have a lean condition once warmed up. I have turned over the starter with the fuel pump line unhooked from the carb and the fuel pump seems to meter out a steady amount of fuel - though its not high pressure, just kind of a small slow stream (again using the electric starter); I also have tried squeezing the fuel hose bulb during the bogging, but this has no affect.
The engine always starts up first turn, idles great. It really does seem like a carburetor issue still, but I just can't see how - the jets are super clean, the float function looked okay, etc. - unless there is something deeper in the carb that could cause this.
I am kind of at a loss as to what to do next - any help or ideas would be appreciated!
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