Small Engines (Lawn Mowers, etc.): craftsman snow blower

Question
QUESTION: My snowblower will not start .i changed the gas in the tank,changed the sparkplug ,tested wit h a sparkplug tester i have a spark,i also cleaned the carburator,even if i put a little ether in the sparkplug hole it still will not start not even for a second,what could be the problem

ANSWER: Does the engine feel like it has compression when you pull the starter cord?  

What brand of engine do you have?  What is the engine model, type and code/serial number?

Let me know.
Eric

---------- FOLLOW-UP ----------

QUESTION: Its craftsman 6 hp model c950 model/ 521540 serial 000897,and yes i do have compression i put my finger in the sparkplug hole and cranked and i felt a good push of air.

Answer
Can you access the carburetor by just removing a panel or two?  If you have spark and compression the engine should fire by priming with new, fresh fuel or starting fuel.  We use a small squirt bottle with some gas and squirt some fuel in the carb.

If it will not start then the spark plug may not be working under compression or the ignition module...very, very rare for the module.  I've only seen one that would have spark with a tester and not work under compression.

When was the blower last used?  Did it sit a while.  Again, while rare, it it possible the flywheel key is sheared?

Can you attach picture of the carburetor?

Eric