Naked Motorcycles
1981Jawa 350 Type 634.6
18 fields on record
The 1981 Jawa 350 Type 634.6 is a lightweight classic twin-cylinder motorcycle ideal for riders seeking affordable, reliable transportation with genuine character. Known for its robust 343cc air-cooled engine and nimble handling, this Czech-built machine excels as both a practical commuter and spirited weekend companion for vintage enthusiasts.
- Capacity
- 343.0 ccm
- Engine
- Parallel Twin
- Gearbox
- 4-speed
- Wet weight
- 175.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 24.0 HP (17.7 kW) @ 5250 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's a lightweight two-stroke twin from the early 1980s built for simple commuting and leisurely cruising rather than speed or long-distance touring.
- Built for
- It has the charming, buzzy character of an old-school two-stroke twin, with a narrow power band, distinct exhaust note, and the mechanical honesty of drum brakes and a 4-speed gearbox.
- Not ideal for
- It's not for riders wanting modern acceleration, sustained highway speeds, off-road capability, or confident stopping power in emergency braking situations.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 343.0 ccm
- Power
- 24.0 HP (17.7 kW) @ 5250 RPM
- Engine type
- Parallel Twin
- Power/weight ratio
- 0.1371 HP/kg (wet)
- Bore x stroke
- 58.0 x 65.0 mm
- Compression
- 9.2:1
- Cooling system
- Air
- Torque
- Not on record - add it
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 125.0 km/h (77.7 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Front tyre
- 3.25-18
- Rear tyre
- 3.50-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1981 | 1982 | 1983 |
|---|---|---|---|
| Capacity | 343 cc | 343 cc | 343 cc |
| Fuel capacity | 17 L | 17 L | 17 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Jawa 350 Type 634.6?
The 1981 Jawa 350 Type 634.6 has a Capacity of 343.0 ccm (20.93 cubic inches).
What engine power does the Jawa 350 Type 634.6 have?
The 1981 Jawa 350 Type 634.6 has a Power of 24.0 HP (17.7 kW) @ 5250 RPM.
How many gears does the Jawa 350 Type 634.6 have?
The 1981 Jawa 350 Type 634.6 has a Gearbox of 4-speed.
How much does the Jawa 350 Type 634.6 weigh?
The 1981 Jawa 350 Type 634.6 has a Wet weight of 175.0 kg (385.8 pounds).
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