Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

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

Yeah I'm swapping out the spark plug tomorrow. Hopefully that takes care of it. I got it from someone who hasn't used it for a couple yrs. It didn't run, so I drained the gas, cleaned the spark plug, cleaned the bowl out and it fired right up. After that I used it a couple times, and now it's acting up 15-20 mins after being started. I was thinking of cleaning the air filter, but can't tell where it's at without ripping off a bunch of plastic. Is it somewhere easy that I'm just overlooking? It's a MTD Yard Machines 21"/5hp with electric start. Thinking @ 3-4 yrs old. Thanks for the help.

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?

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.

It's a Tecumseh 5hp.