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HomeRepair HelpPoulan Pro Mower RepairPoulan Pro Lawn mower runs rough Repair
Poulan Pro Lawn mower runs rough
If your Poulan Pro lawn mower runs rough, sputters, or the engine runs unevenly after starting, the most likely problem is a clogged carburetor caused by old fuel that has turned sticky inside the passages. In many cases, cleaning the carburetor with carburetor cleaner will restore normal operation, but if the buildup is severe, you may need a carburetor repair kit or a complete new carburetor. Next, check the spark plug for carbon buildup, a cracked insulator, or a damaged electrode, and use a spark plug tester to confirm it produces a strong spark while the engine is cranking. A weak or failed plug can make a lawn mower run rough even if it still starts. After that, inspect the fuel filter, since stale fuel can clog the filter and restrict gas flow enough to cause lawn mower sputtering or surging. Draining old fuel from the tank and replacing the fuel filter often helps. To get the exact Poulan Pro part for your mower, enter your model number on RepairClinic.com and match your machine with the right carburetor, spark plug, fuel filter, or other small engine parts.
01 - Poulan Pro Lawn Mower 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 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 - Poulan Pro Lawn Mower 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 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 - Poulan Pro Lawn Mower 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 - Poulan Pro Lawn Mower 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 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 lawn mower, drain the old fuel from the fuel tank and replace the fuel filter.
Less Common
Frequently Asked Questions
Why does my Poulan Pro lawn mower run rough after it starts?
Can a dirty carburetor make a Poulan Pro lawn mower sputter or surge?
How do I know if the spark plug is causing my Poulan Pro mower to run rough?
Will an old or clogged fuel filter make a Poulan Pro mower run unevenly?
How do I find the right carburetor, carburetor repair kit, or spark plug for my Poulan Pro lawn mower?
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