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Poulan Pro Chainsaw Won't Start

The chainsawsmall engine often has a separate model number. Use the small engine model number for a complete list of symptoms and parts. Watch our model # lookup video for help finding the model number.

PP4620AVHD

The part(s) or condition(s) listed below for the symptom Chainsaw won't start are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Chainsaw won't start

Cause 1Spark Plug

The spark plug might be defective. To determine if the spark plug is defective, remove the spark plug and inspect it. If the porcelain insulator is cracked, an electrode has been burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. Alternatively, if the spark plug hasn’t been replaced in a few seasons, replace it.

Parts
Spark Plug for your Poulan ProChainsaw
Spark Plug - Part # 1863323 Mfg Part # 859

Champion Spark Plug (RCJ7Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

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Cause 2Carburetor

The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel will 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.

Parts
Carburetor for your Poulan ProChainsaw
Carburetor - Part # 1995852 Mfg Part # 545013503

Carburetor-complete with installation instructions.

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Cause 3Ignition 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 you replace the ignition coil, make sure that the spark plug is in working condition. If you have confirmed that the spark plug is not defective, test the ignition coil using an ignition coil tester. If the ignition coil is defective, replace it.

Parts
Ignition Coil for your Poulan ProChainsaw
Ignition Coil - Part # 1995879 Mfg Part # 545063901
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Cause 4Rewind Spring

When the starter rope is pulled and released, the rewind spring recoils the starter rope onto a pulley. If the rewind spring is broken, the rope won't be able to recoil onto the chainsaw pulley. As a result, the engine may be difficult or impossible to start. If the rewind spring is broken, replace it. Many rewind springs can be replaced individually, but it may be easier to replace the whole recoil starter assembly.

Parts
Rewind Spring for your Poulan ProChainsaw
Rewind Spring - Part # 1995846 Mfg Part # 545008013

Starter Spring * This is the spring for the retraction of the rope**Not for the easy start system***

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