Stihl HS45 Hedge Trimmer Won’t Start? Here’s the Fix!
No fuel
The fuel tank is empty.
The fuel line is clogged.
The fuel filter is clogged.
Bad spark plug
The spark plug is fouled.
The spark plug is damaged.
Engine compression problem
The piston rings are worn out.
The cylinder is scored.
The valves are stuck.
Engine timing problem
The ignition timing is off.
The valve timing is off.
Electrical problem
The spark plug wire is disconnected.
The spark plug cap is damaged.
The ignition coil is bad.
The kill switch is stuck in the off position.
Stihl Hs45 Hedge Trimmer Won’T Start
Here’s the Fix!
Reasons
Engine not getting fuel
Fuel tank is empty
Fuel line is clogged
Fuel filter is clogged
Spark plug is fouled
Air filter is dirty
Cylinder head is cracked
Cylinder is seized
Carburetor is dirty or out of adjustment
Engine is flooded
Solutions
Engine not getting fuel
Check the fuel tank level and add fuel if necessary.
Inspect the fuel line for leaks or blockages.
Replace the fuel filter if it is clogged.
Spark plug is fouled
Clean or replace the spark plug.
Air filter is dirty
Clean or replace the air filter.
Cylinder head is cracked
Have the cylinder head repaired or replaced.
Cylinder is seized
Have the cylinder repaired or replaced.
Carburetor is dirty or out of adjustment
Clean the carburetor or have it adjusted by a qualified technician.
Engine is flooded
Turn the ignition off and wait a few minutes for the fuel to evaporate.
Then, try starting the engine again.
How to Troubleshoot And Fix:
Symptoms
There are a few different symptoms that may indicate that your Stihl HS45 hedge trimmer is not starting properly. These include:
The trimmer won’t start at all
The trimmer starts but immediately dies
The trimmer starts but runs erratically
The trimmer starts but makes a strange noise
Causes
There are a number of different things that could cause your Stihl HS45 hedge trimmer to not start properly. These include:
A dirty or clogged air filter
A faulty spark plug
A bad fuel line
A problem with the carburetor
A problem with the ignition switch
Troubleshooting
To troubleshoot the problem with your Stihl HS45 hedge trimmer, you will need to first identify the cause of the problem. Here are a few steps to help you do that:
1. Check the air filter:
If the air filter is dirty or clogged, it can prevent the engine from getting enough air to run properly. To check the air filter, remove it from the trimmer and inspect it for dirt and debris. If the air filter is dirty, clean it according to the manufacturer’s instructions.
2. Check the spark plug:
A faulty spark plug can also prevent the engine from starting properly. To check the spark plug, remove it from the engine and inspect it for damage. If the spark plug is damaged, replace it with a new one.3. Check the fuel line:
A bad fuel line can also cause problems with starting. To check the fuel line, inspect it for leaks or blockages. If you find a leak or blockage, repair or replace the fuel line as necessary.
4. Check the carburetor:
A problem with the carburetor can also cause the engine to not start properly. To check the carburetor, you will need to remove it from the engine and inspect it for damage or debris. If you find any damage or debris, clean the carburetor according to the manufacturer’s instructions.
5. Check the ignition switch:
A problem with the ignition switch can also prevent the engine from starting. To check the ignition switch, turn the trimmer on and off. If the ignition switch is not working properly, replace it with a new one.
Fixing the Problem
Once you have identified the cause of the problem with your Stihl HS45 hedge trimmer, you can fix it by following the steps below:
1. Clean the air filter:
If the air filter is dirty or clogged, clean it according to the manufacturer’s instructions.
2. Replace the spark plug:
If the spark plug is damaged, replace it with a new one.3. Repair or replace the fuel line:
If you find a leak or blockage in the fuel line, repair or replace the fuel line as necessary.
4. Clean the carburetor:
If you find damage or debris in the carburetor, clean the carburetor according to the manufacturer’s instructions.
5. Replace the ignition switch:
If the ignition switch is not working properly, replace it with a new one.
Preventing Future Problems
You can help prevent future problems with your Stihl HS45 hedge trimmer by following these tips:
Keep the air filter clean and free of debris.
Replace the spark plug regularly.
Inspect the fuel line for leaks or blockages regularly.
Clean the carburetor regularly.
Replace the ignition switch if it is not working properly.
By following these tips, you can help keep your Stihl HS45 hedge trimmer running smoothly for years to come.
Also Read: Why Did My Black And Decker Hedge Trimmer Stopped Working