Choose Product
Identify Problem
03
Find Solutions
HomeRepair HelpZama RepairZama Small engine hard to start Repair

Zama Small engine hard to start

If your Zama small engine that is hard to start usually has an ignition or fuel-delivery problem. Start with the spark plug, the most likely cause. Check for a cracked insulator, burned electrode, heavy carbon buildup, or no spark with a spark plug tester while the engine is cranking. If the plug is damaged or produces no strong spark, replace it. Next, inspect the carburetor. A clogged carburetor can restrict fuel, while a choke that does not close properly can supply too much fuel and cause engine starting problems, especially when cold. Stale or ethanol-blended fuel left in the carburetor is one of the most common root causes on seasonal equipment and can clog internal passages. Finally, check the fuel cap. A clogged vent can create tank pressure and make the engine hard to start. Loosen the cap slightly and try starting the engine. If it starts more easily, replace the fuel cap. Before ordering a spark plug, carburetor, or fuel cap, enter your model number to find the exact replacement part for your specific Zama engine.

01 - Zama 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.
Enter model number to search for the required part specific to your product
Need help finding your model number?
Shop all Zama Spark Plug Parts
Top Solution

02 - Zama 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.
Shop all Zama Carburetor Parts
Highly Likely

03 - Zama 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...eplace the gas cap.
Shop all Zama Fuel Cap Parts
Common

Frequently Asked Questions

Why is my Zama small engine hard to start when cold?
What should I check when my Zama small engine won't start?
Can a clogged fuel cap make a Zama engine hard to start?
How do I know which Zama small engine part to order?
What should I do if my Zama engine is still hard to start after cleaning the carburetor?