Well kinda... School me on JSO numbers.
This...?
Manufacturer: Yamaha
OEM Part Number: LUB-20W50-AP-04
Details: Yamalube 20W-50 Motorsorts All Purpose Engine Oil - 1 Quart,
This performance-blended mineral oil is suitable for use in motorcycles, ATVs, Side-by-Side vehicles, and scooters...