Poulan Pro Lawn Mower Won’t Start. If your lawnmower has been sitting for a while and now it won’t start. Depending on how long your lawnmower sits, some parts may need to be cleaned, tightened, or replaced.
In addition to old fuel, a bad spark plug, electrical issues, and more, there can be different reasons why a lawnmower won’t start depending on the model and make.
There are a number of reasons why this might be the case. Leaving gas in the mower after the last time you used it may cause it to deteriorate into an inedible substance, similar to stale milk spoiling in the fridge.
It’s still possible that all that’s needed to get your equipment up and running smoothly again is some critical introspection or troubleshooting on your part.
Poulan Pro Lawn Mower Won’t Start
To make sure you’re using your lawnmower safely, make sure all loose, dirty, or disconnected parts are checked and dealt with.
It’s a good idea to use a spark plug wrench to loosen the connection then clean off any debris that has built up around the threads of the spark plug itself. Finally, tighten it back in firmly.
Make sure the air filter is not clogged with debris as this may cause problems for the engine by either decreasing its power output or preventing fuel from reaching it entirely.
In such cases, you’ll need to replace the old one! If none of these things have worked and your mower still won’t start,
tap the side of your carburetor gently with a wooden mallet in order to shake everything loose and hopefully again allow fuel to reach properly so that an explosion can occur which will start your engine once more. Although this tip sounds odd, it really does work.
Ignition Coil Problem
The ignition coil sends voltage to the spark plug when the engine is running.
If the ignition coil is defective, you may have trouble turning on your lawnmower.
Before replacing the ignition coil, thoroughly check any other components that would require electricity while the engine is running like your headlights and/or windshield wipers if applicable.
Then ensure that your spark plug working properly by starting your lawnmower engine and checking for a bright flash at its tip after you’ve turned it off once or twice.
This will show you if it is sending electricity to the rest of your lawn mower components or not.
You can test an ignition coil with an ignition coil tester to see if it’s doing what it’s supposed to do without having to replace it with yet another faulty part.
Flywheel Key Issue
the flywheel key might have snapped. The flywheel key is a small metal piece that fits into the crankshaft and engages with the flywheel.
If the lawnmower engine stops suddenly due to hitting a hard object, the flywheel key acting as weak-point breaks apart to prevent damage to the engine.
If the flywheel key snaps apart, the lawnmower won’t start. To determine if the flywheel key is broken.
Remove one end of it from its fitting position in the crankshaft using an Allen wrench then check if there’s any visible damage like cracks or missing material. If so, replace it before putting everything back together again.
The carburetor might be clogged. If you suspect your lawnmower’s carburetor is clogged, the most common way of fixing it is by cleaning it.
More often than not, lawnmower owners usually mistakenly think that the problem lies underneath the hood instead of inside of it.
So what needs to be done really is to make sure everything else works just fine and that the only thing that needs some attention is their mower’s faulty engine.
Error With Spark Plug
Inspect the spark plug to determine if it’s working correctly. If its insulator is cracked, there are two main problems:
One, the plug may not be sparking as well as it should and this could be misfiring or two worse- nose overheating and choking off fuel streams can both result in engine breakdowns.
In either case, your spark plugs must be changed immediately. Make sure you insert these replacement plugs with care and slowly if you want them to last the life of your engine.
Malfunction Of The Rewind Spring
If your lawnmower’s rewind spring is broken, the starter rope won’t be able to recoil onto the pulley. As a result, the engine won’t start. Each mower is different, so we suggest that you visit your local repair shop.
If the rewind spring appears to be broken on your machine. While you are there, feel free to ask for assistance in replacing the entire recoil starter assembly or any other part that may need attention as well.
If it’s not starting at all and you’ve checked to make sure that everything is plugged in and tight, check out this handy guide that might give you some clues as to what’s going on.
Failed To Recoil Starter
To see if the recoil starter assembly is working properly, remove it from the engine and then inspect it.
To test the recoil starter assembly, grasp the pulley around which the rope circles and try to pull on it by holding onto its tabs with your hands.
If you do this, and the engine turns, then this means that the starter is indeed operating properly. If not, then you will have to replace it.
Defective Fuel Filter
The fuel filter on the lawnmower may be clogged. A commonly known reason why a lawnmower may not startup is after old fuel has evaporated.
Left certain ingredients behind that harden in liquid form, thus preventing the fuel filter from doing its job effectively which results in the engine failing to startup.
If this is the case, obviously having left old fuel sitting in your machine for an extended period of time resulted in its concoction,
please do drain the old fuel from the tank and replace your bad fuel filter before trying again.