Snowblower not running, getting a lot of snow, need help ASAP

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  #1  
Old 12-26-10, 05:07 PM
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Snowblower not running, getting a lot of snow, need help ASAP

Hello, I'm brand new here, and as my name depicts, i started "fooling" with my snowblower and lawn mower this year when ever it needed repairs, following mostly "donyboy73" on youtube. But I don't have much t ime so im gonna get right to the point.

earlier in this month i bought a 13 year old MTD White outdoor 7 hp tecumseh blower. I did basic stuff like new oil, spark plug, rebuild carb etc.

But today (the day we are getting almost 2 feet of snow, my blower seems to have "backfired" out the back of the carburetor, where the choke is. Now, it won't start at all. ive checked for spark and it has a powerful blue one, ive added nice new gas, checked carb multiple times, changed the oil, checked muffler for water or other debris or liquid.

Just to let you all know, this all started after I changed the fuel line with the apriopate 1/4" line. The flywheel key seems to be in perfect working order, and I have spark so im assuming its not the flywheel. I have removed spark plug, turned engine over many times to see if its flooded, bu i don't think it is.

the manual calls the engine "Model OHSJ50-55-60-70" Snow King

Any help would be appreciated, I need this for the morning!!!!

Thanks in advance
 
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  #2  
Old 12-26-10, 05:35 PM
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You could have water in the gas, but most likely the carb needs to be cleaned as it has varnish inside.
 
  #3  
Old 12-26-10, 05:44 PM
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Hmm, Already cleaned out the carb, replaced bowl gasket/o-ring, replaced main jet gasket aswell as float, that valve seat thingy that the pin rests on.

Help anyone? I'm in a bit of a prob here

Thanks

PS The main jet is fixed, not adjustable
 
  #4  
Old 12-26-10, 05:57 PM
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Has it ran well at any point after you did the work on it?

If not, pull off the float bowl and see if the float/float valve is switching the flow of fuel on and off by raising the float against the valve.

When you say the flywheel key is OK, how was that checked?
 
  #5  
Old 12-26-10, 06:03 PM
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What part is the float valve? How exactly do I do this?

I just gave it a nice look and determined it wasn't sheered or anything.
 
  #6  
Old 12-26-10, 06:11 PM
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marbobj

I forgot to answer you this, it ran fine this morning before it "backfired"
 
  #7  
Old 12-26-10, 07:22 PM
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see if it will run when you spray some carb cleaner in the air intake.
 
  #8  
Old 12-26-10, 07:27 PM
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Originally Posted by 38racing View Post
see if it will run when you spray some carb cleaner in the air intake.
Are you referring to the intake pipe on the carb leading to the engine?
 
  #9  
Old 12-27-10, 08:48 AM
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Just took the flywheel off, and discovered the flywheel key was snapped into 2 pieces. Will update when i get a new key


Thanks
 
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