To find the HP for your specific 208cc Troy-Bilt rear tine tiller, I recommend the following:
1. Check the owner's manual: The engine horsepower should be listed in the manual that came with your tiller.
2. Look at the tiller's identification plate: The plate usually includes the model number and engine details. You can use this information to search for the tiller online.
3. Contact Troy-Bilt customer support: You can call or visit their website to speak with a representative who can provide the HP rating for your specific model.
Please note: Engine horsepower can vary slightly depending on the model and year of manufacture.