It's not only Possible, it's probable that the Needle seat isn't doing it's job. Just one of the many hazards of Ethanol Gas.
I bet dad didn't turn off the new Shutoff.
You can buy new seats and needle valve if you want to go crazy OR just shut off the new Valve just before turning off the engine.
One of the reasons I got my Cub from the P.O. was that the gas leaked into the Cylinders on it's way to the Oil Pan and caused hydro lock. When I got it, the crank case was full with gas and oil.
I have fixed many neighbors and friends lawn mowers , snow blowers etc just because ethanol gas had paid it's toll on the rubber parts as well as rusted up the Bowl area of the carb. Politicians and the Agricultural Lobbyists have caused this 'crime' and I can't buy Non ethanol where I live to fight this Carb killer.
The particles in the Carb., did they look almost metallic/shiny or almost like salt? Ethanol gas will also cause the Bowl to deteriorate. If you take the bowl off, look close, the bowl might look pitted inside.
__________________
If I can't fix it , it must not be broken
|