How to Check and Adjust Riding Mower Tire Pressure

Check your owner's manual for the correct tire pressure. Most riding mower tires call for 10-14 PSI. Front and rear may differ.

Use a LOW-PRESSURE tire gauge — regular automotive gauges aren't accurate at these low pressures.

Remove the valve cap from each tire and press the gauge firmly onto the valve stem. Read the pressure.

If low, add air in short bursts using an air compressor or hand pump. Recheck frequently — small tires inflate quickly and it's easy to overinflate.

If overinflated, press the pin in the center of the valve stem briefly to release air. Recheck.

All tires on the same axle should be at the same pressure. Uneven pressure causes the mower to cut unevenly — the lower side cuts higher.

Replace the valve caps. Check pressure monthly during mowing season — tires lose air gradually, especially in temperature changes.

Inspect tires for cracks, dry rot, or flat spots while you're checking pressure. Replace worn or damaged tires before they fail.