now what ?
 

I went to start my 123 tonight to move and start removing the snow plow and chains. When the engine came up to speed , it started blowing oil out of the dip stick. Problem with the breather assembly causing the crankcase to pressurize ?

to me it sounds like the crankcase breather isn't venting properly, forcing it out the dipstick tube. i'd check for blockages in the breather.

The same thing can happen if the rubber on the dipstick doesn't seal properly in the tube.