Question about Garden
You did not mention whether your mower has a 2-cycle or 4-cycle engine. 2-cycle engine may require 2-cycle oil mixed with the gas to lubricate the pistons/cylinders.
4-cycle engines do not require mixing gas & oil as they have a separate sump for oil. These engines are quite easy to maintain and will last for many years. The most common problem is the fuel delivery system. If you allow the fuel to run low, debris sitting at the bottom of the tank is picked up and can clog the strainer (if so equipped). Check for a clogged in-line fuel filter and replace as needed. Occasional cleaning of the fuel inlet and strainer may be necessary; some disassembly is required. The carburetor jets also suffer from blockage usually caused by varnish residue from gasoline if the mower was allowed to sit for long periods of time without the fuel being drained or at least treated with some type of fuel stabilizer (Sta-Bil is one). If you have time, open up the carburetor and spray all the fuel passages with Gumout Carburetor cleaner to dissolve said varnish. Jiggle the choke mechanism while spraying to dislodge carbon build-up at the butterfly valve. And if you have a compressor, blow out these passages with pressurized air. Poking them with wire is a NO-NO. If it has a paper-element filter and it looks like you can plant grass on it, it is time to replace them. Does it have a re-usable/washable air filter? Clean the filter element with an air filter cleaner solution (or dishwash detergent) and re-oil (I use K&N filter oil) once dry.
Always use clean gas (your gas container may be contaminated over the years) and an ounce of STP carb cleaner per gallon of gas usually keeps things clean.
Posted on Apr 04, 2011
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Posted on Jan 02, 2017
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