I have a toro 421 snowblower i filled it up today with oil and gas when I started it a milky white oil looiking came out the breather tube what could have caused this

Hi Jerome:
Shouldn't be too bad.
You could disconnect the fuel line at the carb and drain the tank.
Drain and flush the carb. Reconnect the fuel line and fill with fresh gas.
If it won't start, pull the spark plug and clean/dry it with a propane torch, or replace it.
Odds are it will be fine.
Cheers.

its over filled or vent is plugged

!!!!!! dran the gas put in the neww mix gas and pray for the best

I do not think this is a gasket issue, if the machine has beed tipped up oil will travel up the breather tube and enter the air filter case, over filling will also cause this, if its been tipped it will clear if you run it for a time with the filter off.

Sounds like it is not getting any spark. you might have a bad ignition coil.

Only tilt a lawnmower backwards toward the handle end (spark plug end raises) Other ways move the oil around to places it doesn't need to go. Now you probably have gas in the oil....check it or change it (milky looking or smells like gas..contaminated...might need changing anyway...You probably will have oil in the carb and it will blow smoke...You probably filled the oil breather with oil and it will drain down...causing smoke also. This was the wrong thing to do A 2 year old unit should be mechanically sound..Check the air filter, spark plug and carburetor for oil fouling. Remove the bowl on the carb to help get some of the oil out...it will leak gas when you do.

You overfilled the oil. If the mower runs, just go ahead and mow grass until it runs the oil out of the gas tank. Or you can empty the gas tank and fill with new gas. White smoke is not a serious problem. Only a hassle.

check to see if in line fuel shut off valve is open.If so,sounds like carb is gummed up.

I have a toro 421 snowblower won't start after had it fixed from shop and how to operator to starter?