Small Engines (Lawn Mowers, etc.): 20hp BS Diamond I/C commercial, dip stick, crankcase

Question
I was mowing when all of a sudden the tractor started smoking. After lifting the hood back I noticed a crack along maybe the manifold? its the part that is facing the firewall of the tractor. Is that just a manifold with a gasket? I pulled the dip stick and the oil still looked clean with no milky or dark color.

Answer
 Hello Deron:

 The Intake Odeon do Crack and Cause the Problem you Described. The Cracked Intake wont Allow the Vacuum to Pull through the Crankcase vent and thus the Smoking Occurs. Hope this Helps. I am here if you Require more Assistance. Thanks.

 Good Luck

 Respectfully

 John