Why is your lawn mower vibrating? Your lawn mower may be experiencing vibration from loose engine mounting bolts, the electric clutch, unbalanced blades, foreign mater wrapped around the blade shaft, bearings in the spindle housing, bad pulleys, or debris wedged in mower. There are many items that can cause vibration in your lawn mower. From my experience, it may not be as bad as you think. You’re mowing the lawn and you feel excessive shaking of your lawn mower.
