Small Engines (Lawn Mowers, etc.): tecumseh 5.5hp eng probem, speed nozzle, snow blower

Question
my moms snow blower only run in full choke. the snow blower is 3yr old this winter (with only may be 5-7 hrs on it)
mod# 932037.  sn 025834  eng. mod# ln195sp  spec# 67519d

Answer
The engine is starving for fuel.  That is why it runs on choke.  I am assuming you left old gas in it during the off months.  If this is the case the main jet and nozzle have "varnished" from the fuel.

To prevent this in the future always turn the fuel shutoff to "OFF" and run the snowblower until it quits.  This will have removed all the fuel from the carb bowl.

There are three ways to attempt to fix this.  

On the bottom of the carb should be a drain, push it drain all the old fuel from the carb and try fresh fuel, this may work, but i doubt it.  When i say fresh fuel, I mean fresh from the fuel pump at the gas station, not from the can that is in your garage.

If this doesn't work the next most cost efficient way is to REPLACE the carb.  

You can always attempt to disassemble the carb and clean the main jet and high speed nozzle too, but if this doesn't work your back to replacing the carb.

Hope this helps

Happy Tinkering!

David R