Yahama ?

[tho1mas]

I have a 2004 Yamaha 25 hp. four stroke motor that starts & run great. If I run it wide open for about 200 yards it starves out. I pump up the bulb & it runs fine another 200 yards. Always starts up after the stall. It will run all day at half open or less.

Anyone have any ideas?

[tho1mas]

I have a 2004 Yamaha 25 hp. four stroke motor that starts & run great. If I run it wide open for about 200 yards it starves out. I pump up the bulb & it runs fine another 200 yards. Always starts up after the stall. It will run all day at half open or less.

Anyone have any ideas?

[bourbeusefisher]

There are several things I would try.

1. Make sure the vent for you gas tank is open

2. Change your fuel line from the tank to the motor. With the ethanol in gas now it like to eat away the fuel line and it acutally will collapse the fuel line.

3. Replace the fuel bulb there may be a pin hole in it

4. Check your fuel filter if that model has one under the cowl.

I had to do all of this when I had problems with my yamaha 40/30 fourstroke jet and i have no problems now. My problem was the fuel line actually collapsed on me.

Hope this will send you in the correct direction.

[tho1mas]

Thank you. I never use E- GAS but I am the second owner, so I will follow your helpful info.

[Whiteriver]

Your gas hose lining is collapsing on the inside of the line. Cut the hose and you can see it. I had the same problem on my 07 25hp Yamaha. New hose fixed her right up.

[tho1mas]

Thanks, new line & bulb will be installed.

[hoglaw]

Step dad's Yamaha 25 2 stroke had the identical problem and a new fuel line fixed it.

[bourbeusefisher]

You are lucky living down in southwest mo. Every time I take my bassboat down to the Rock I am able to fill up with ethnol free fuel but up here in the St. Louis area i can not find it. UGH One thing I would also recomend is get a water fuel seperator. I installed it and not a problem at all.