Back to Bike FinderYears: 1987 · 1986 · 1985 · 1984
IZH Jupiter 4
1985Cruiser

IZH Jupiter 4

Key specifications

Engine
350 cc
Power
27 HP
Fuel type
petrol
Fuel capacity
4.5 L
Transmission
4-speed
Front brakes
Expanding brake
Rear brakes
Expanding brake

Overview

### IZH Jupiter 4: A Classic Naked Bike with Soviet Charm The IZH Jupiter 4, produced in 1985, stands as a testament to Soviet engineering ingenuity, appealing to motorcycle enthusiasts who crave a blend of vintage aesthetics and practical performance. Positioned as a naked bike, it captures the essence of simplicity and functionality, making it an attractive option for riders seeking an affordable yet stylish ride. Its design and construction reflect an era when motorcycles were built for the pure joy of riding, free from the complexities of modern electronics while still delivering a compelling experience on the road. At the heart of the Jupiter 4 lies a robust 350cc twin, two-stroke engine that churns out 27 horsepower at 6,000 RPM. This spirited powertrain allows the motorcycle to reach a top speed of 125 km/h (77.7 mph), offering a thrilling ride that is both exhilarating and approachable for riders of various skill levels. The 9.5:1 compression ratio and a bore and stroke of 62.0 x 58.0 mm ensure a responsive throttle and a signature two-stroke sound that resonates with enthusiasts. Coupled with a 4-speed gearbox and chain final drive, the Jupiter 4 delivers a riding experience characterized by smooth acceleration and a sense of connection to the road, ideal for both city commutes and weekend escapades. The IZH Jupiter 4 is adorned with features that reflect the pragmatic design philosophy of its time. With a weight of just 180 kg (396.8 pounds), this motorcycle is agile and easy to maneuver, making it perfect for urban environments. The expanding brake system at both the front and rear provides reliable stopping power, adding to the confidence of the rider. Additionally, the 17-liter fuel tank offers a commendable range, allowing for longer rides without frequent refueling stops. Its minimalist design not only highlights its vintage charm but also simplifies maintenance, a key consideration for riders looking for a bike that is easy to care for while maximizing riding enjoyment. ####

Pros

    Cons

    • Lightweight and Agile: With a low weight of 180 kg, the Jupiter 4 is easy to handle, making it suitable for both new and experienced riders.
    • Unique Vintage Appeal: The classic naked bike design and distinctive two-stroke engine sound attract attention and admiration from motorcycle enthusiasts.
    • Simplicity in Maintenance: The straightforward mechanical design allows for easy repairs and maintenance, ensuring riders can keep their motorcycle in top shape without the need for specialized tools or training.
    • Limited Power Output: While the 27 HP engine is adequate for casual riding, it may not satisfy those seeking high-performance capabilities.
    • Basic Suspension and Brakes: The expanding brake system and basic suspension might not provide the level of performance and comfort found in more modern motorcycles.
    • Two-Stroke Engine Drawbacks: The two-stroke engine, while offering a unique character, can be less fuel-efficient and produce more emissions compared to four-stroke counterparts.

    Technical details

    Source specification data

    Make
    IZH
    Model
    Jupiter 4
    Category
    Naked bike
    Power
    27.00 HP (19.7 kW)) @ 6000 RPM
    Gearbox
    4-speed
    Top Speed
    125.0 km/h (77.7 mph)
    Bore X Stroke
    62.0 x 58.0 mm (2.4 x 2.3 inches)
    Compression
    9.5:1
    Displacement
    350.00 ccm (21.36 cubic inches)
    Cooling System
    Air
    Engine Details
    Twin, two-stroke
    Transmission Type Final Drive
    Chain
    Fuel Capacity
    17.00 litres (4.49 gallons)
    Weight Incl Oil Gas Etc
    180.0 kg (396.8 pounds)
    Rear Tyre
    3.50-18
    Front Tyre
    3.50-18
    Rear Brakes
    Expanding brake
    Front Brakes
    Expanding brake