How To Replace Pull Cord

1. Safety first: Ensure the engine is off and disconnected from any power source. Also, wearing protective gloves is recommended.

2. Remove the starter housing: Locate the starter housing on the top of the engine. There are usually a few screws holding it in place. Use a screwdriver to remove these screws and carefully lift off the starter housing.

3. Release tension on the pulley: Inside the starter housing, you'll see a round pulley with the old pull cord wrapped around it. Slowly unwind the old cord until there is no tension left. Keep track of the path of the cord as it'll be helpful during reassembly.

4. Remove the old cord: Once the tension is released, unwind and remove the old cord. Take note of how it was attached to the pulley and any knots or mechanisms used to secure it.

5. Prepare the new cord: Obtain a suitable replacement cord (available from hardware stores or authorized Troy-Bilt dealers). Make sure it is the correct length and thickness. You may need to trim it to size if necessary. Also, it's a good idea to burn the cut ends slightly to prevent fraying.

6. Install the new cord: Starting from the inside of the pulley, thread the new cord through the holes or channels following the same path as the old cord. Be careful to replicate any knots or mechanisms used to secure the cord before. Leave a small length of cord hanging out for pulling.

7. Wind the cord: Holding the pulley, begin winding the cord in the normal direction (usually clockwise), making sure it remains tight and neat on the pulley.

8. Secure the cord: Once the cord is wound, insert the end into the notch or slot on the pulley. This will help hold it in place while you reassemble the starter housing.

9. Reinstall the starter housing: Carefully position the starter housing back onto the engine, aligning it properly. Insert and tighten the screws to securely fasten the housing in place.

10. Test the new cord: Give the cord a gentle pull to ensure it extends and retracts smoothly. Make sure it engages the engine's recoil mechanism as intended.

Congratulations! You have successfully replaced the pull cord on your Troy-Bilt TB225. Remember to always follow the manufacturer's instructions and refer to your specific model's manual for detailed guidance and illustrations.