the handle on my ego mower feels loose and wobbly, how do i tighten it?

Tighten the hexagon socket screws at the handle pivot points.

1. Locate the four hexagon socket screws (part number 5620161005) and four prevailing torque hexagon nuts (part number 5630006002) that secure the handle assembly (part number 2823682002).
2. Use the correct size Allen key and wrench to tighten each pair.
3. Also check the clamp (part number 3126763001) and clamp block (part number 3126761001) on the lower handle beam.

If that didn't work, inspect the connecting rod assembly (part number 2825245001) and the pin shafts (part number 5670142001) for wear or damage.

Heads up: Check these fasteners periodically as vibration from mowing can loosen them over time.