How to Fix a Troy-Bilt Weed Trimmer

Quck answer

Troy-Bilt weed trimmers are popular tools for maintaining gardens and lawns. If your Troy-Bilt weed trimmer is not working properly, there are a few steps you can take to repair it. Firstly, check the spark plug and clean or replace it if necessary. Next, inspect the fuel lines for any cracks or leaks, and replace them if needed. Additionally, clean or replace the air filter to ensure proper airflow. Finally, check the trimmer head for any obstructions or damage, and repair or replace it as necessary. By following these steps, you can effectively repair your Troy-Bilt weed trimmer and get it back in working condition.

Most issues with a Troy-Bilt weed trimmer can be traced back to a clogged air filter, a faulty spark plug, or an improperly adjusted carburetor. These problems can result in the trimmer idling poorly, failing to start, or stalling during use. Luckily, you can clean the filter, replace the plug, and adjust the carburetor on your own.

Clean the Air Filter

Step 1: Remove the Filter

Set the choke lever to “Position 2” and use a flat blade or T20 Torx screwdriver to unscrew the four screws holding the air filter cover in place. Take off the air filter cover from the engine, being careful not to damage it or the engine. Turn the cover over and remove the air filter.

Step 2: Wash It With Soap and Water

Use water and soap to clean the air filter. After washing, squeeze out any excess water and let the filter dry. If the filter is too dirty to clean, replace it.

Step 3: Lightly Oil It and Replace It

Add a small amount of SAE 30 oil to the filter, making sure to cover the entire surface. Squeeze the filter to distribute the oil evenly. Place the filter back into the cover and fasten the cover onto the engine with the four screws.

Clean the Spark Plug

Step 1: Remove the Spark Plug Wire

Wait for the engine to cool down. Once it has cooled, locate the spark plug on the cylinder head and pull the spark plug wire to detach it from the plug.

Step 2: Unscrew and Remove the Plug

Clean the area around the spark plug with a cloth. Use a 5/8-inch spark plug wrench to turn the plug counterclockwise until it comes off.

Step 3: Set the Gap

Use a feeler gauge to set the gap of the replacement plug’s terminal to 0.020 inches.

Step 4: Replace the Plug

Put the new spark plug onto the cylinder head and turn it clockwise using the spark plug wrench. Avoid overtightening it. Reattach the spark plug wire by pushing it onto the plug until it snaps in place.

Adjust the Carburetor

Step 1: Warm Up the Engine

Start the engine and let it run at a high idle to warm up.

Step 2: Adjust the Idle Setting

Release the throttle and let the engine idle. If it stops, use a #1 Phillips screwdriver to adjust the idle speed screw in the air filter cover. Turn the screw 1/8 of a turn clockwise to make the engine run leaner and increase idle speed. If the engine slows down, turn the screw in the opposite direction.

Step 3: Fine-Tune the Idle

Restart the engine and release the throttle. If it stops again, turn the screw another 1/8 of a turn. Repeat this process until the engine runs smoothly at idle.

Adjusting Carburetor Screws

There are two other carburetor adjustments that can be made by using the low-speed and high-speed adjustment screws. However, it is important to consult the manual for your specific model to ensure that these adjustments are made correctly. An incorrect adjustment of the high-speed screw can cause damage to the engine.

FAQ

1. How do I troubleshoot a Troy-Bilt weed trimmer that won’t start?

If your Troy-Bilt weed trimmer won’t start, there are a few things you can check. First, ensure that the trimmer has fuel and that the fuel is fresh. Next, check the spark plug to make sure it’s clean and properly gapped. If the spark plug is fine, check the air filter and clean or replace it if necessary. Finally, check the trimmer’s carburetor for any clogs or damage. If you still can’t get it to start, it may be best to take it to a professional for further inspection.

2. How often should I change the trimmer line on my Troy-Bilt weed trimmer?

The frequency of changing the trimmer line on your Troy-Bilt weed trimmer depends on how often you use it and the type of trimming you’re doing. As a general guideline, it’s recommended to change the trimmer line when it wears down to less than 2 inches in length. If you frequently trim thick and dense vegetation, you may need to change the line more often. Regularly inspect the line during use and replace it as needed to maintain optimal cutting performance.

3. What should I do if the trimmer line keeps breaking on my Troy-Bilt weed trimmer?

If the trimmer line on your Troy-Bilt weed trimmer keeps breaking, there are a few possible causes. First, make sure you’re using the correct type and size of trimmer line for your trimmer. If you’re using the right line, check for any tangles or obstructions that may be causing the line to break. Additionally, ensure that you’re not overloading the trimmer by trying to cut through thick vegetation in a single pass. If the issue persists, it may be necessary to replace the trimmer head or seek professional assistance.

4. How do I clean the air filter on my Troy-Bilt weed trimmer?

To clean the air filter on your Troy-Bilt weed trimmer, start by removing the air filter cover. Take out the air filter and tap it gently on a clean surface to remove any loose debris. If the filter is extremely dirty, you can wash it with warm soapy water and allow it to dry thoroughly before reinstalling. Once the filter is clean, reinsert it into the trimmer and secure the air filter cover. Regularly cleaning the air filter will help ensure optimal performance and extend the life of your trimmer.

5. How do I replace the spark plug on my Troy-Bilt weed trimmer?

To replace the spark plug on your Troy-Bilt weed trimmer, start by disconnecting the spark plug wire. Use a spark plug wrench to remove the old spark plug from the trimmer. Check the new spark plug to ensure it’s the correct type and gap it according to the trimmer’s specifications. Carefully thread the new spark plug into the trimmer by hand, and then use the spark plug wrench to tighten it securely. Finally, reconnect the spark plug wire. Regularly replacing the spark plug will help maintain smooth operation and efficient fuel combustion.

6. How do I adjust the carburetor on my Troy-Bilt weed trimmer?

Adjusting the carburetor on your Troy-Bilt weed trimmer can help improve performance and fuel efficiency. Start by locating the idle adjustment screw and the high and low-speed adjustment screws on the carburetor. Refer to your trimmer’s manual for the specific locations of these screws. Use a small screwdriver to turn the idle adjustment screw clockwise to increase the idle speed or counterclockwise to decrease it. To adjust the high and low-speed settings, turn the screws until the engine runs smoothly at full throttle and idle. It’s recommended to consult the trimmer’s manual or seek professional assistance for precise carburetor adjustments.

7. How do I store my Troy-Bilt weed trimmer for the winter?

Properly storing your Troy-Bilt weed trimmer during the winter months will help prevent damage and ensure it’s ready for use in the spring. Start by draining the fuel tank and running the trimmer until it’s out of fuel. Remove the spark plug and add a small amount of oil to the cylinder. Slowly pull the starter cord a few times to distribute the oil. Clean the trimmer thoroughly and inspect it for any damage or wear. Store the trimmer in a dry and secure location, away from any potential hazards. Following these steps will help prolong the lifespan of your trimmer.

Leave a Comment