I just replaced the gas tank and fuel lines on my ryobi 410 cultivator. The old lines had cracked and I had replaced just the lines but soon discovered that it was leaking fuel, so instead of messing with it I just bought the new tank with the lines attached. Anyway... After replacing the tank the engine starts right up, but it dies within a few seconds, If I give it a little gas it will stay running, but too much it dies.
So I started going though it,
Spark plug looks fine, cleaned it up a bit
Exaust is clear
Fuel lines are clear, fuel is spraying into the carb
So I started "messing with" the adjustment screws
at one point it would idle fine and would go up to full throttle and I could hold it there, but at about 15sec. the motor would start to stumble and then die.
I'm fairly good with motors, but this has got me stumped. Why would just changing the fuel tank and lines cause these problems? any ideas? thanks