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HomeRepair HelpCub Cadet RepairCub Cadet Pressure washer won't start Repair
Cub Cadet Pressure washer won't start
If your Cub Cadet gas pressure washer won't start, begin with the spark plug, the most likely cause. Inspect it for a cracked insulator, burned electrode, heavy carbon buildup, or no spark while the engine is cranking. Next, check the carburetor, which can become clogged when stale or ethanol-blended fuel is left inside during seasonal storage. Clean it with carburetor cleaner, then rebuild or replace the carburetor if necessary. If the spark plug works and the pressure washer is still not starting, test the ignition coil and replace it if it fails to send voltage to the plug. A sheared flywheel key is another possible cause, especially if the engine stopped suddenly after striking a hard object. These checks address common reasons a Cub Cadet power washer won't start, won't turn on, or will not start. Always disconnect the spark plug wire before servicing, and enter your model number to find the exact replacement spark plug, carburetor, ignition coil, or flywheel key for your pressure washer.
01 - Cub Cadet 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 plug. To determine if the spark plug is defective, use a spark plug tester. You should see a strong spark between the tester’s terminals when the engine is cranking. If there is no spark, this indicates that the spark plug is defective and should be replaced.
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02 - Cub Cadet Carburetor
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. 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.
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03 - Cub Cadet 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 plug is working properly. If you have confirmed that the spark plug is working properly, test the ignition coil with an ignition coil tester. If the ignition coil is defective, replace it.
Common
04 - Cub Cadet 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 engine stops suddenly due to the pressure washer hitting a hard object, the flywheel key breaks in half to prevent damage to the engine. To determine if the flywheel key is broken, remove the flywheel from the engine and inspect the flywheel key. If the flywheel key is broken, replace it.
Common
Frequently Asked Questions
Why won't my Cub Cadet pressure washer start?
What should I check when my pressure washer won't start and has no spark?
Why does my Cub Cadet pressure washer pull normally but still will not start?
How do I find the correct Cub Cadet pressure washer spark plug or carburetor?
What safety steps should I follow before repairing a pressure washer that won't start?
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