Jawa 350 Chopper (1997) vs Jawa 644 Chopper (1994)
Comparison technical specifications
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| Make: | Jawa | Jawa |
| Model: | 350 Chopper | 644 Chopper |
| Years: | 1997 | 1994 |
| Engine: | Two stroke, twin cylinder | Two stroke, parallel twin |
| Capacity: | 343.5 cc / 20.96 cu in | 343.4 cc / 21.0 cu in |
| Bore x Stroke: | 58 x 65 mm | 58 x 65 mm |
| Compression Ratio: | 9.8:1 | 10.2:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | Carburetor | Jikov 28-29 CE horizontal carburetor, slide type |
| Ignition: | TCI (Transistor Controlled Ignition) | Magneto VAPE A67 contactless |
| Starting: | Electric and kick | Kick |
| Clutch: | Wet, multiple discs, cable operated | Multi disc in oil bath |
| Max Power: | 17.2 kW / 23 hp @ 5250 rpm | 18 kW / 25 hp @ 5500 rpm |
| Max Torque: | 32 Nm / 3.26 kgf-m / 23.6 ft.lb @ 4750 rpm | 33 Nm / 3.4 kgf-m / 25 ft.lb @ 5250 rpm |
| Transmission: | 4 Speed | 4 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Hydraulic telescopic forks, | Hydraulic telescopic fork, steel spiral springs |
| Rear Suspension: | Twin shock | Swingarm, hydraulic telescopic in suspension units, spiral springs |
| Front Brakes: | Single Ø265 mm disc, single piston caliper | Ø265 mm Disc, hydraulic control |
| Rear Brakes: | Ø160 mm Drum | Ø165 mm Drum, mechanical control |
| Front Tyre: | 90/90-17" | 90/100-17" |
| Rear Tyre: | 100/90-18" | 100/90-18" |
| Dry Weight: | 152 kg / 335 lbs | 147 kg / 322 lbs |
| Fuel Capacity: | 17 L / 4.5 US gal | 15 L / 4.0 US gal |