Yard Machines 673 Lawn Mower Manual

The Yard Machines 673 is a reliable lawn mower designed for efficient grass cutting. It features a powerful engine, adjustable cutting heights, and a durable steel deck. This manual provides essential information on safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Operation Instructions 4. Specifications 5. Maintenance 6. Troubleshooting

Features at a Glance

Key features include a 21-inch cutting deck, 3-in-1 capability (mulching, bagging, side discharge), and a powerful 140cc engine.

FeatureDescription
Cutting Deck21 inches wide for efficient mowing
Engine140cc gas engine for reliable performance
Cutting Height Adjustment5 positions for customized grass length
3-in-1 CapabilityMulch, bag, or side discharge clippings
WheelsLarge rear wheels for better maneuverability

Safety Information

Always wear appropriate safety gear, including eye protection and sturdy footwear. Read the manual thoroughly before operating the mower.

WARNING! Keep hands and feet away from the cutting area while the mower is running.

Operation Instructions

To operate the mower, follow these steps:

  1. Check oil and fuel levels before starting.
  2. Adjust cutting height as needed.
  3. Start the engine using the recoil starter.
  4. Guide the mower in straight lines for an even cut.

CAUTION! Do not operate on wet grass to avoid slipping.

Specifications

Maintenance

Regular maintenance is essential for optimal performance. Change the oil, clean the air filter, and sharpen the blades as needed.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startNo fuel or clogged filterCheck fuel level and replace filter if necessary.
Uneven cutWorn blades or uneven tire pressureSharpen blades and check tire pressure.
Excessive vibrationLoose parts or damaged bladesTighten all screws and inspect blades for damage.

Service: For further assistance, contact customer support.

Yard Machines 673 Lawn Mower Manual © - All Rights Reserved 2026