A leaf blower that won’t start is often an indication that it needs some maintenance. Even the best selling leaf blowers are not infallible and need the occasional cleaning, replacement, or repair.
Knowing how to use a leaf blower is the first step. The next step is how to keep it ready for use. Below are the most likely reasons why you are having trouble starting a leaf blower and how to fix it.
1. Spark Plug
Spark plug damage is the most common cause which is why you should replace it at least once a year. It is also a good idea to use the spark plug tester every few months.
Over time, fuel residue may clog up the carburetor which is why it is important to use the right fuel mix. Start by using a carburetor cleaner but if that doesn’t work you may have to do some repairs with a carburetor kit or even install a new carburetor.
3. Air Filter
As with most power equipment with an engine, the air filter of a leaf blower should be replaced regularly, preferably once a year. Also, make sure to get rid of any debris in the air filter housing.
4. Rewind Spring
This is the part that lets the manual recoil pull do its job so if the rewind spring is broken pulling has no use. Sometimes it is enough to only replace the rewind spring but many choose to replace the entire manual recoil assembly.
5. Recoil Starting
If it is not the rewind spring it might be the entire recoil starter that has issues. Replace it and your leaf blower should work again.
6. Spark Arrestor
A spark arrestor can have carbon buildup, similar to an air filter. Simply clean it thoroughly or replace the spark arrestor.
7. Ignition Coil
Use an ignition coil tester to check whether the ignition coil is the issue. Replacing a broken ignition coil should have the leaf blower running without any problems again.
8. Flywheel Key
The flywheel key is a safety precaution but this spare part can suffer damage before doing its job. Without it, the engine won’t start so do replace it as quickly as possible.
Frequently Asked Questions
How do you unflood a leaf blower?
Continuously using the pulley when the ignition system isn’t working will cause the leaf blower to flood i.e. unburnt fuel moves into the engine. Stop pulling and tilt the leaf blower so that the fuel flows back out.
How do you start a flooded leaf blower motor?
Close the choke to trap in more air then turn the gas lever to let fuel into the engine. Try starting the engine again and repeat after a few seconds if the problem persists.
How do you prime a leaf blower?
Most leaf blowers have a primer switch. Simply press it around 4-7 times before pulling the starter cord.
How do you test a leaf blower for spark?
The safest way to test for spark is with a spark tester. There are DIY alternatives but these are a fire hazard.