"Yamaha RT 180" is a very general description. There are many different Yamaha models with "RT" and "180" in their name, each with potentially different engine sizes and horsepower.
To help me determine the horsepower, please tell me:
* The exact model name: Is it an RT180, an RT 180, a RT-180, or something else?
* The year of manufacture: Different years of the same model may have different engine specifications.
* The type of engine: Is it a motorcycle, a scooter, an outboard motor, etc.?
Once you provide more details, I can help you find the horsepower information.
