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Wheel Horse Lawn mower won't start

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Common solutions for: Wheel Horse Lawn mower won't start
Solution 1:
Spark Plug
Inspect the spark plug for signs of wear or damage. If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark...
Required Part
Lawn Mower Spark Plug
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Solution 2:
Carburetor
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. Over time, some of the ingredients in the fuel may...
Required Part
Lawn Mower Carburetor
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Solution 3:
Carburetor Repair Kit
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. Over time, some of the ingredients in the fuel may...
Required Part
Lawn Mower Carburetor Repair Kit
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Solution 4:
Old or Bad Gasoline
There may be old or bad fuel in the carburetor float bowl. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and prevent the engine from starting. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor.
Solution 5:
Start Switch
To determine if the start switch is defective, use a multimeter to test it for continuity.
Required Part
Lawn Mower Start Switch
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Solution 6:
Fuel Pump
The fuel pump has three ports: the gas in port, the gas out port, and the pulse port. The pulse port is connected to the engine crankcase by a small rubber tube. As the engine runs, air inside the...
Required Part
Lawn Mower Fuel Pump
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Solution 7:
Flywheel Key
the flywheel key might have sheared in half. The flywheel key is a small metal piece which fits into the crankshaft and engages with the flywheel. If the lawn mower engine stops suddenly due to...
Required Part
Lawn Mower Flywheel Key
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Solution 8:
Ignition Coil
The ignition coil sends voltage to the spark plug while the engine is running. If the ignition coil is defective, the engine may not start. Before replacing the ignition coil, ensure that the spark...
Required Part
Lawn Mower Ignition Coil
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Solution 9:
Fuel Filter
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving old fuel in the lawn mower. Over time, some of the ingredients in the fuel may evaporate, leaving behind a...
Required Part
Lawn Mower Fuel Filter
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Solution 10:
Safety Switch
To determine if the safety switch is defective, use a multimeter to test it for continuity.
Required Part
Lawn Mower Safety Switch
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Solution 11:
Rewind Spring
The rewind spring might be broken. When the starter rope is pulled and released, the rewind spring recoils the starter rope onto a pulley. If the rewind spring is broken, the rope won’t be able to...
Required Part
Lawn Mower Rewind Spring
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Solution 12:
Rewind Pulley and Spring
The rewind spring might be broken. When the starter rope is pulled and released, the rewind spring recoils the starter rope onto a pulley. If the rewind spring is broken, or if the rewind pulley is...
Required Part
Lawn Mower Rewind Pulley and Spring
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Solution 13:
Recoil Spring
When the starter rope is pulled and let go the recoil spring is supposed to recoil the rope onto a pulley. If the recoil spring is broken the rope can't be recoiled onto the pulley which will prevent...
Required Part
Lawn Mower Recoil Spring
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Solution 14:
Recoil Starter
The recoil starter assembly engages the crankshaft to turn over the engine. If the recoil starter assembly is defective, the engine won't start. Remove the starter assembly and inspect it to...
Required Part
Lawn Mower Recoil Starter
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Solution 15:
Recoil Starter Pulley
The recoil starter pulley winds up the starter rope when the rope is not in use. If the recoil pulley is broken or stuck, it won't be able to rewind the starter rope. As a result, the engine won't...
Required Part
Lawn Mower Recoil Starter Pulley
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