Reliable and fuel efficient, Yamaha MZ125 (123cc), air-cooled, OHV, 2-valve, 4-stroke engine (4hp)

Auto decompression system reduces engine compression to provide a light recoil starter pull for effortless manual starting.

Maintenance-free transistorized controlled electronic ignition (TCI) provides a hot spark for fast, easy starting.

Cast iron cylinder liner provides excellent heat dissipation for consistent performance and long engine life.

Yamaha's Oil Watch Warning System automatically shuts off the engine when oil level is low and will not re-start until oil is added, preventing costly engine damage and enhancing long-term durability.

Large muffler for quiet operation