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Lawn-Boy 680540 lawn mower Parts

Here are the diagrams and repair parts for Lawn-Boy 680540 lawn mower, as well as links to manuals and error code tables, if available.

Lawn-Boy 680540 lawn mower
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Browse Parts for 680540 Walk-Behind Mowers

  • Washer for Lawn-Boy 680540 - Part 146014

    Housing and shroud group diagram

    Washer

    Part #146014

    The manufacturer no longer makes this part, and there's no substitute part

  • Cover for Lawn-Boy 680540 - Part 610742

    Carburetor group diagram

    Cover

    Part #610742

    The manufacturer no longer makes this part, and there's no substitute part

  • Kit - Idle N for Lawn-Boy 680540 - Part 684285

    #NI

    All parts diagram

    Kit - Idle N

    Part #684285

    The manufacturer no longer makes this part, and there's no substitute part

  • Cyl & C-case for Lawn-Boy 680540 - Part 683702

    Engine group diagram

    Cyl & C-case

    Part #683702

    The manufacturer no longer makes this part, and there's no substitute part

  • Bracket-cd M for Lawn-Boy 680540 - Part 613073

    Engine group diagram

    Bracket-cd M

    Part #613073

    The manufacturer no longer makes this part, and there's no substitute part

  • Mulch Kit for Lawn-Boy 680540 - Part 681906

    #NI

    All parts diagram

    Mulch Kit

    Part #681906

    The manufacturer no longer makes this part, and there's no substitute part

  • Base Shroud for Lawn-Boy 680540 - Part 612427

    Engine group diagram

    Base Shroud

    Part #612427

    The manufacturer no longer makes this part, and there's no substitute part

  • Blade Nut for Lawn-Boy 680540 - Part 603164

    Housing and shroud group diagram

    Blade Nut

    Part #603164

    The manufacturer no longer makes this part, and there's no substitute part

  • Hex Washer Screw for Lawn-Boy 680540 - Part 613110

    Engine group diagram

    Hex Washer Screw

    Part #613110

    The manufacturer no longer makes this part, and there's no substitute part

  • Nut for Lawn-Boy 680540 - Part 328712

    Carburetor group diagram

    Nut

    Part #328712

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower front deck tray

How to replace a lawn mower front deck tray

Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair time and Difficulty

 60 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair time and Difficulty

 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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