* Model Year: The amount of oil required varies depending on the specific model year of your YZF450.
* Service Manual: The most accurate information is always found in your motorcycle's service manual. This manual will provide precise oil capacities for all fluid levels, including the gearbox.
How to find the information:
1. Locate your Service Manual: You can often find a digital version online by searching for "[Your YZF450 model year] service manual" or by contacting your local Yamaha dealer.
2. Check the "Engine" or "Transmission" Section: The manual will likely have a section dedicated to fluids and capacities.
3. Look for Gearbox Oil Capacity: Find the section that specifies the gearbox oil volume.
Important Note:
* Always use the correct type of oil: Yamaha specifies a specific type of oil for the YZF450 gearbox. Make sure to use the recommended oil, as using the wrong type can damage the transmission.
* Check oil level regularly: It's essential to regularly check the gearbox oil level and top it off if needed.
I hope this helps! Please consult your service manual for the most accurate information regarding your specific YZF450 model.