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HomeRepair HelpKawasaki RepairKawasaki Small engine hard to start Repair
Kawasaki Small engine hard to start
When a Kawasaki small engine is hard to start, begin with the spark plug, the most likely cause. Inspect it for a cracked insulator, burned electrode, or heavy carbon buildup, then test for a strong spark while the engine is cranking. A worn or defective spark plug can cause common engine starting problems, including an engine that takes multiple pulls to start. Next, check the carburetor. A clogged carburetor may restrict fuel, while a choke that does not close properly can deliver too much fuel. Stale or ethanol-blended fuel left in the carburetor is one of the most common causes of hard starting on seasonal equipment, so clean the carburetor and use fresh fuel when needed. Finally, check the fuel cap. A clogged fuel cap vent can prevent air from entering the tank and make the Kawasaki engine hard to start. Loosen the cap slightly and try starting the engine. If it starts more easily, replace the fuel cap. Enter your model number to find the exact replacement spark plug, carburetor, or fuel cap for your specific engine.
01 - Kawasaki 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 - Kawasaki Carburetor
The engine may be getting too much fuel or not enough fuel. This is usually due to the carburetor not working properly. If the carburetor is clogged, the engine won't get enough fuel. If the carburetor choke isn't closing properly, the engine may get too much fuel.
Highly Likely
03 - Kawasaki Fuel Cap
As fuel is consumed, the pressure in the gas tank rises. To relieve this pressure, the gas cap uses a small vent to allow air to enter the gas tank. If the gas cap vent is clogged, air won’t be able to enter the gas tank, and the pressure in the tank will begin to rise. When the pressure in the gas tank exceeds the pressure in the engine, the engine may be hard to start. To determine if the gas cap vent is clogged, try slightly loosening the gas cap and then starting the engine. If the loosening the gas cap allows the engine to stay running, this indicates that the gas cap vent is clogged. If the gas cap vent is clogged, r...
Common
Frequently Asked Questions
Why is my Kawasaki small engine hard to start?
How do I know if my Kawasaki small engine has a bad spark plug or no spark?
Can old gas or a clogged carburetor cause a Kawasaki engine to be hard to start?
How can I tell if the Kawasaki small engine fuel cap is causing hard starting?
How do I find the correct Kawasaki small engine replacement part?