Lawn Boy mowers are for the homeowner who wants a good tool to take care of his yard on a budget. With their characteristic green mower decks, Lawn Boy mowers are hard to miss. They are made by the same people who make Toro mowers. But even though Lawn Boy mowers are well made, they will still experience problems. It is good for a homeowner to know how to repair his Lawn Boy mower himself. Engine starting problems are the most common mower problems a homeowner will experience.
Things You'll Need
- New spark plug
- Ratcheting wrench and spark plug socket or a spark plug wrench
- Gapping tool
- New air filter
- Fresh fuel
- Fuel stabilizer
Disconnect the spark plug wire, and move it out of the way. Remove the spark plug with a ratcheting wrench and a spark plug socket or a spark plug tool. Inspect the business end of the spark plug looking for signs of wear and tear or obvious signs of damage. If the spark plug shows signs of wear, replace it immediately. Use a gapping tool to be sure the spark plug gap measures 0.030 inches before installing a new spark plug or the old spark plug that is still in good condition. Reattach the spark plug wire and attempt to start the engine. If the engine does not start, look at the condition of the air filter.
Take the air filter cover off the engine. Remove the air filter from the filter housing and inspect it for damage or wear. Reinstall clean air filters that are in good condition.
Drain the fuel out of the fuel tank, and replace it with fresh, stabilized fuel. Attempt to start the engine. If the engine does not start, the problem may be out of your hands.
Call your local service dealer for an appointment to have them look at your Lawn Boy mower. They are trained to service your Lawn Boy mower and diagnose problems that require a learned and experienced eye.
Tips & Warnings
- A worn or damaged spark plug will not allow the engine to start very easily or at all.
- Clogged air filters reduce the air flow into the engine which basically suffocates the engine making it difficult to start. On the other hand, if the air filter has holes in it, dirt, dust and debris can enter the combustion chamber easily and potentially cause catastrophic damage. Replace air filters at least every two seasons.
- Regular unleaded gasoline will only stay fresh for up to 30 days without fuel stabilizer being added to the tank. Stabilized fuel will remain fresh for up to 12 months.
- Photo Credit Stockbyte/Stockbyte/Getty Images
How to Replace a Lawnboy Pull Cord
The pull cord replacement on a Lawn Boy lawnmower is one of the most common repairs that are done on this type...
How to Adjust the Carburetor on a Lawn Boy
A dead give-away that you need to adjust the carburetor on your Lawn-Boy mower is excessive gas consumption or black smoke when...
How to Replace a Belt on a Lawn Boy Self-Propelled Mower
If your Lawn Boy self-propelled mower won't drive when you pull up on the drive handlebar, you most likely have a broken...
How to Troubleshoot a Lawn Boy Mower
Lawn Boy walk-behind mowers are some of the best known on the market. Although usually reliable, performance issues with your Lawn Boy...
How to Troubleshoot Lawn-Boy Self-propelled Mowers
Old lawnmower models took a lot of effort to use; all that pushing and pulling could make a small yard feel like...
The Fuel to Oil Ratio for a Lawn-Boy Lawnmower
Lawn-Boy lawnmowers that operate with a two-cycle gas-powered engine will need a combination gasoline/oil fuel. Four-cycle Lawn-Boy lawnmowers don't require a fuel...