BLES wrote:How does/could that happen on something like this? No float to stick in carb, tank is below engine...
every carburetor has a needle valve - in the case of a diaphragm carb it's the metering needle (and the metering chamber is the "float bowl") and second despite the tank being below carb on these , remember they have a fuel tank vent that has to hold a small amount of pressure, and it is the nature of liquid gasoline to .. well.. turn to gas (vapor) which creates pressure in the tank as it does so - which then will push fuel out the fuel lines - pop the fuel line off on any normally running 2-stroke and you'll discover that fuel will push itself out the line, no matter how high it has to travel.. due to accumulated pressure in fuel tank ...
Long story short... metering needle leaked, carb flooded engine, crankcase fulla gas. can also flood out the engine if you over-choke it when trying to start - there were certain customers we used to have that regularly brought back their new (2013 & later) Echo or Stihl or Husqvarna with that same problem - cause they were trying to start with the choke on.. on a WARM engine.. and the longer it wouldn't start, the worse they flooded it (cause cylinder fulla wet gas that won't burn) despite me trying to educate them (many many times!) don't touch the choke, don't touch the throttle , just switch it on and pull the cord 2-3 times FIRST - many times (especially on the Echo machines) they were so well tuned they'll start at idle, no choke, cold engine with an easy 1 or 2 pulls of the recoil.... but those certain folks just would not learn and continued the "old ways" habit (open throttle wide, full choke, and drop start yank the starter cord as hard as they can)
How poor are they who have not patience. What wound did ever heal, but by degrees? - Iago (Othello Act II, Scene 3)