BEFORE YOU CHOOSE A REPLACEMENT
Confirm the match, then plan the job.
Keep starter-motor diagnosis separate from carburettor or fuel-system troubleshooting. Once the starting-circuit fault is confirmed, compare the listed WR450F application, drive arrangement and terminal position before choosing the replacement.
Before removing the starter, confirm the starting-circuit fault and follow the workshop procedure for electrical isolation and access. Check which seals or fitting items the job requires rather than assuming they are included with the motor.
We list the Yamaha WR450F Starter Motor 2007–2015 (5TJ-81890-30-00) at Motorbike Parts Australia. Check that page for current availability, price and complete fitment details.
Ask us about fitment: 0437 723 708
How to Replace Yamaha WRF450 Starter Motor
Firstly, you will need to source a replacement Starter Motor, which can be found by Yamaha WR450F Starter Motor 2007–2015 (5TJ-81890-30-00)
Replacing the starter motor on your Yamaha WR450F is a task that requires attention to detail and the right tools. Here’s a step-by-step guide to help you through the process:
Tools and Materials Needed:
- New starter motor compatible with your Yamaha WR450F model
- Socket wrench set
- Allen wrench set
- Screwdrivers (both Phillips and flathead)
- Torque wrench
- Clean rags
- Service manual (optional but highly recommended)
Step 1: Preparation
- Ensure your motorcycle is turned off and parked on a flat, stable surface.
- Allow the engine to cool down if it has been recently running.
- Disconnect the battery to prevent any electrical mishaps during the replacement process.
- Familiarize yourself with the location of the starter motor on your Yamaha WR450F. It’s typically located on the engine casing, usually near the bottom.
Step 2: Remove Body Panels (if necessary)
- Depending on your motorcycle’s model year and design, you may need to remove some body panels or covers to access the starter motor.
- Use the appropriate tools to remove the necessary body panels or covers, following the instructions in your service manual if available.
Step 3: Disconnect Electrical Connections
- Locate the electrical connections attached to the starter motor.
- Carefully disconnect these electrical connections, ensuring you note their positions or take a photo for reference during reassembly.
Step 4: Remove Mounting Bolts
- Once you have access to the starter motor, locate the mounting bolts securing it in place.
- Use the appropriate tools to loosen and remove these mounting bolts, ensuring you keep track of them for reassembly.
Step 5: Remove Starter Motor
- With the mounting bolts removed, gently pull the starter motor away from the engine.
- Take care not to damage any surrounding components as you remove the starter motor.
Step 6: Install New Starter Motor
- Position the new starter motor in place, aligning it properly with the mounting holes.
- Secure the new starter motor in place using the mounting bolts removed earlier. Tighten them securely.
Step 7: Reconnect Electrical Connections
- Reconnect the electrical connections to the new starter motor, ensuring all connections are secure and properly seated.
Step 8: Reassemble Body Panels (if removed)
- If you removed any body panels or covers to access the starter motor, carefully reassemble them onto the motorcycle using the appropriate bolts or fasteners.
Step 9: Final Checks
- Double-check all connections and fasteners to ensure everything is secure.
- Reconnect the battery.
- Start your motorcycle and verify that the new starter motor is functioning properly.
Additional Tips:
- Refer to your motorcycle’s service manual for specific instructions and torque values.
- Take your time and work carefully to avoid damaging any components.
- If you’re unsure about any step, don’t hesitate to consult with a professional mechanic or refer to online tutorials/resources.
By following these steps carefully, you should be able to successfully replace the starter motor on your Yamaha WR450F and ensure your motorcycle starts reliably.
