Yamaha Jupiter Z1
The Yamaha Jupiter Z1 is a small displacement underbone motorcycle introduced by Yamaha in Southeast Asia, particularly popular in Indonesia, Thailand, and Vietnam, building upon the long-running Jupiter series that dates back to the early 2000s. The Z1 variant brought fuel injection (Fuel Injection/Fi technology) and updated styling to the budget-friendly commuter segment, making it one of Yamaha's key entry-level offerings in the region. It became notable for its fuel efficiency, reliability, and low running costs, cementing its status as a practical daily commuter for millions of riders across Southeast Asia.
~9.6 hp
Power
~9.0 Nm
Torque
~99 kg
Weight
~110 km/h (estimated; note: real-world top speed may vary by conditions and load)
Top Speed
~2.0 L/100km or ~50 km/L (typical real-world average)
Fuel
Faired
Body
What Buyers Should Know
Proven Engine Reliability
The Jupiter Z1 uses Yamaha's 113cc SOHC engine with a reputation for exceeding 50,000 km with minimal issues when serviced regularly. It's a popular choice for daily commuters across Southeast Asia due to its low maintenance demands.
Watch the Carburetor
Older units are prone to carburetor clogging, especially if the bike sits unused for extended periods. Always check for rough idling or hard starting, as carb cleaning or rebuilding is a common early expense.
Strong Resale Value
The Jupiter Z1 holds its value well in the used market due to high demand for spare parts and widespread mechanic familiarity. A well-maintained unit typically retains 60–70% of its original value after three years.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Yamaha Jupiter Z1
