1. Online Parts Catalogs:
* Honda's Official Website: Visit Honda's official website for your region. They often have online parts catalogs that can be searched by model year and part name. You should be able to find diagrams and part numbers for the petcock.
* Motorcycle Parts Websites: Search for websites specializing in motorcycle parts, such as Partszilla, BikeBandit, or others. These websites typically have comprehensive part catalogs and diagrams for various motorcycle models.
* eBay: You can also try searching for "Honda 150 Benly petcock diagram" on eBay. Sellers often provide diagrams or part numbers for the parts they sell.
2. Repair Manuals:
* Haynes or Clymer Manuals: These manuals provide detailed information on repairing and maintaining your motorcycle. You can typically find these manuals at online retailers or at your local motorcycle shop.
3. Local Motorcycle Shops:
* Visit a local motorcycle shop: Talk to a mechanic at a local shop that specializes in Honda motorcycles. They might have access to diagrams or be able to help you identify the correct petcock for your model.
Remember to specify the year and model of your Honda 150 Benly for accurate results. Good luck finding the diagram you need!