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HomeRepair HelpZama RepairZama Small engine runs poorly Repair
Zama Small engine runs poorly
If your Zama small engine runs poorly, runs rough, sputters, surges, or loses power, start with the carburetor. Small engine carburetor problems are most often caused by stale or ethanol-blended fuel left in the carburetor, especially on seasonal equipment. As fuel evaporates, it leaves a sticky residue that can clog the carburetor passages and cause engine running rough. Clean the carburetor with carburetor cleaner. If cleaning does not correct the problem, rebuild or replace the carburetor, or install a Zama carburetor repair kit. Next, inspect the spark plug for a cracked insulator, burned electrode, or heavy carbon buildup, and use a spark plug tester to check for a strong spark while the engine cranks. A clogged fuel filter is less common but can also restrict fuel flow and make the engine sputter. Drain old fuel from the fuel tank and replace the filter. Enter your model number to find the exact replacement carburetor, repair kit, spark plug, or fuel filter for your Zama small engine.
01 - Zama Carburetor
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the engine 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 cause the engine to run roughly. 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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02 - Zama Carburetor Repair Kit
The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the engine 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 cause the engine to run roughly. 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 - 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.
Highly Likely
04 - Zama Fuel Filter
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving fuel in the engine 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 fuel filter and cause the engine to run roughly. If old fuel was left in the engine, drain the old fuel from the fuel tank and replace the fuel filter.
Less Common
Frequently Asked Questions
Why is my Zama small engine running rough or sputtering?
Can stale fuel cause a Zama small engine to run poorly?
How do I test the spark plug when my Zama engine runs poorly?
What should I check if my Zama small engine surges or loses power under load?
How do I find the correct replacement part for my Zama small engine?