My Craftsman Snowblower 536.881510 will not start.
Checked oil, fuel, and cleaned spark plug.
Tried using starting fluid. Where is the air filter?

Most snowblowers do not have air filters. Did you run the blower dry last year so there was absolutely no fuel in it or is there fuel in the lines from last year? http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Snow-removal-equipment-Parts/Model-536881510/0247/1507200?pathTaken=&prst=0&shdMod=536881510