What are the specific manufacturer guidelines regarding whether an ultrasonic cleaner may be used to clean a Toro Model 21321 Recycler 21-in Gas Self-propelled Lawn Mower with 140-cc Briggs and Stratton Engine's plastic carburetor and its component parts?

To determine the specific manufacturer guidelines for cleaning the plastic carburetor and its components of a Toro Model 21321 Recycler 21-in Gas Self-propelled Lawn Mower with a 140-cc Briggs and Stratton engine using an ultrasonic cleaner, you would typically refer to the following sources: 1. **Owner's Manual**: The owner’s manual often contains information regarding maintenance procedures and recommended cleaning methods for various components, including the carburetor. 2. **Toro Manufacturer Website**: The official Toro website may have specific product information or cleaning recommendations for the model in question. Check if they provide service manuals or maintenance guides. 3. **Briggs and Stratton Resources**: Since the engine is manufactured by Briggs and Stratton, their guidelines on carburetor maintenance may also apply. You can check their website or contact their customer service for advice regarding ultrasonic cleaning. 4. **Contact Customer Support**: If the information is not readily available, contacting Toro’s customer service directly can provide clarity on whether ultrasonic cleaning is recommended or safe for the plastic components of the carburetor. In general, ultrasonic cleaners can be effective for cleaning carburetors, but it’s important to be cautious with plastic components, as the cleaning solution and ultrasonic waves can potentially damage them. Always verify with the manufacturer’s guidelines before proceeding with cleaning methods to ensure that you do not void the warranty or damage the parts.