techumseh engine on snowthrower dies

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  #1  
Old 01-16-13, 06:04 PM
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techumseh engine on snowthrower dies

I have a Sears snow thrower with a techumseh engine. It starts up and revs high and runs fine for about 15-20 min and then the engine seems to bog down under a load. Then it begins to slow down and sounds as if it's out of gas, if I stop it sometimes will rev back up but still ends up just slows down again and stops. After it sits for a few min it will start up again, but within a few min it stalls out again. What's causing this? Fresh gas, gas stabilizer and new plug for every winter. It's about 4 years old.
 
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  #2  
Old 01-16-13, 06:40 PM
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Try loosening the gas cap next time it begins dying and see if it picks back up and runs well again. If so, your gas cap vent is clogged.
 
  #3  
Old 01-17-13, 03:24 PM
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Thanks, I'll give it a try next time. Would that also cause the bogging down under a load after time?
 
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Old 01-17-13, 03:41 PM
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After time, yes. It would cause the fuel level in the carb to gradually get lower and lower, causing a leaner and leaner running condition until it just can't run anymore.
 
  #5  
Old 01-17-13, 05:10 PM
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I'll def give it a try the next time we have enough snow to use it. Thanks again.
 
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