Lawn Mower Is Hard To Start. Lawnmowers are just like any other power tool and they tend to have a lot of moving parts. However, it is the job of these many different moving parts to come together as one to function successfully.
Problems can occur with these mechanisms, however, when things don’t work as they are supposed to. One problem you might run into involves trying to start your lawnmower when cold outside.
These types of problems can be quite complicated to diagnose and resolve because there could be multiple factors contributing to them – but here’s how you can identify the problem and try fixing it yourself.
Lawn Mower Is Hard To Start
Starting a lawnmower can be a challenge, but the good news is that this issue is preventable. To fix your lawnmower, it might be as simple as tightening a spark plug, cleaning a clogged air filter, or filling your gas tank.
Fuel Filter Problem
The fuel filter is most likely clogged. When a lawn mower’s fuel filter has gunk built upon it, it’s usually caused by old gas remains being left in the lawnmower.
Over time, some of the ingredients of the gas will probably evaporate, leaving behind a thicker, stickier substance that could be causing your lawnmower trouble, thus making it more difficult to start.
If you think you might have forgotten to remove old gas then drain all the gas from your lawnmower and replace the fuel filter before attempting to start your lawnmower once more.
Ignition Coil Issues
The ignition coil sends voltage to the spark plug when the engine is running.
A defective ignition coil will cause problems starting the engine or even keeping it running eventually.
Before replacing an ignition coil, test that the spark plug isn’t faulty first. If you’ve confirmed that it’s not causing a problem, then you must test the ignition coil with an ignition coil tester – and if it’s defective, replace it with a new one.
Fault With Flywheel Key
The flywheel key may keep the flywheel from turning freely. The flywheel key fits into the crankshaft to connect to the flywheel. Then, it engages with the clutch plate and turns both of them at the speed of the crankshaft.
If you notice that your generator engine won’t start, try pressing on the end of your generator with a hammer if you aren’t sure if it is broken or not.
It will tell you if the key is broken if it moves freely in and out when you press on it with a hammer. If your generator engine suddenly stops running and you notice that your flywheel key is broken, remove it.
Error With Spark Plug
Look for signs of wear or damage on the spark plug. When the porcelain insulator is cracked, the electrodes are burned away or damaged, or there is heavy carbon buildup at the electrodes, replace the spark plug.
To determine if the spark plug is defective, use a spark plug tester. Start by checking if you’re able to see a strong current between the tester’s terminals when trying to start your lawnmower.
If there is no current happening, this indicates that it might be time to get a new spark plug.
Rewind Spring Failure
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 pulley.
As a result, the engine won’t start. If you have trouble starting your lawnmower, check your rewind springs.
Many rewind springs can be replaced individually but it may be easier to replace entire recoil assemblies without risking further damage due to breakage later on down the road.
Faulty Recoil Starter
When the starter cord is pulled and released, the recoil spring is recoiling back. If the recoil spring snaps or breaks, the starter cord won’t be able to recoil onto a pulley.
The engine will not be able to start, causing excessive wear on other parts. You can replace just the recoil spring, but it may be easier to replace the whole recoil starter assembly.
Cause Of Carburetor
It may be clogged in the carburetor. An obstructed carburetor can be caused by many factors: the fuel evaporates, leaving deposits on the inside of the barrel and preventing gas from entering the engine; this can result in poor combustion or even cause the engine to stop working.
Gas could then misfire, causing a buildup of stale exhaust within the cylinder or a lean mixture that would also prevent proper running. Either of these could cause improper agitation and prevention of ignition.
If your hedge trimmer is not running properly, clean the carburetor or replace it altogether as well as any other parts that may have failed through wear and tear over time.
Defective Primary Bulb
Over time, the primer bulb can get worn out and cracked. If you notice that your injector’s primer bulb is cracked, replace it with a new one immediately to avoid any potential issues with your fuel system.
A cracked primer bulb may cause air to seep into the fuel system which in turn means that your engine won’t be able to run flawlessly.
If you notice a cracked primer bulb on your injector, we highly advise that you purchase a replacement immediately.
Lawn Mower Is Hard To Start