Your equipment will last much longer if it is tuned up each year.
Riding Mower/Zero Turn: Change engine oil, oil filter, air filter, pre-air filter, spark plugs, and fuel filter. Clean the engine cooling fins and mower deck. Check deck belts, bearings, and idlers, transmission belt and idlers, tire pressures, charging system, and battery. Lube all grease fittings, level mower deck, sharpen and balance mower blades.
Push Mower: Change engine oil, spark plug, and air filter. Clean engine cooling fins and mower deck. Check cables, check self propel, lube machine, sharpen and balance mower blades.
Handheld Power Equipment: Change fuel, air and pre-air filters. Check spark plug for proper gap. Lube any gearboxes and shafts. Inspect valve clearance. Check for carbon build up.