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Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > MTD 21" 2 stroke-Back firing and stalling after 15-20 mins of use

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swgreene9


Joined: Jan 9, 2011
Points: 3
MTD 21" 2 stroke-Back firing and stalling after 15-20 mins of use
Original Message   Jan 9, 2011 6:20 pm
I took the spark plug out and it looks like the tip was dipped in oil. I mixed 50:1 according to the manual. Any thoughts? Thanks
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borat


Joined: Nov 10, 2007
Points: 2692
Re: MTD 21" 2 stroke-Back firing and stalling after 15-20 mins of use
Reply #4   Jan 9, 2011 8:42 pm
I wouldn't spend too much time looking for an air filter.  Not too many snow throwers come with air filters.  Focus on the fuel and spark plug for now.  Who makes the two stroke engine in your MTD?
Shryp


Location: Cleveland, OH
Joined: Jul 26, 2010
Points: 532
Re: MTD 21" 2 stroke-Back firing and stalling after 15-20 mins of use
Reply #5   Jan 10, 2011 2:36 am
It is possible in the 20 minutes you ran it, the vibration loosened up more crud in the fuel lines or something and replugged the carb.
swgreene9


Joined: Jan 9, 2011
Points: 3
Re: MTD 21" 2 stroke-Back firing and stalling after 15-20 mins of use
Reply #6   Jan 10, 2011 10:21 am
It's a Tecumseh 5hp.
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