Engine won't start

• Suzuki engines use simple gravity flow, rather than a fuel pump, to draw fuel into the carburetor. If the engine won't run, always start by checking the fuel flow. The rubber fuel line can become clogged or disconnected from the fuel tank or carburetor. Also, check the fuel for any water. Water can easily get into small-engine fuel tanks. This is not a major problem, however. Just drain the tank, take off the air filter and allow the tank, fuel line and carburetor to dry. Once dry, reassemble the mower and add fresh fuel.
  
  The spark plug on the Toro lawn mower is also exposed to the elements. It can rust and the contact wire can also corrode. Look for any rust around the spark plug. Remove any corrosion with a wire brush.
  
  A clogged air filter can also be the culprit. Remove the foam filter and check for excessive dirt and oil buildup. Just wash the filter with degreaser solution and allow it to dry thoroughly. Don't put it on the lawn mower while it's still damp -- the carburetor will suck the water into the engine and you'll have to restart the drying-out process.
  
  

Lubrication

• An often-overlooked aspect of operating small engines is the oil reservoir. The oil-fill cap is on the side of the engine and has a small dipstick. Check the level every time you add fuel. If the reservoir runs low, the engine won't start. Fill the reservoir, pull the start cord slowly a few times to circulate the fresh oil and then start normally.
  
  

Won't cut grass.

• If the Toro lawn mower runs, but has a difficult time cutting the grass, it's time to sharpen or replace the blade. A dull blade will push and clog in the grass, instead of cutting. Use a metal file or buy a circular stone for your power drill to restore the edge on both sides of the blade. If the blade is worn from repeated sharpening, a new blade may be in order.
  
  Anytime you work on the blade, disconnect the spark plug to ensure against any accidents or unintended motor starts.