the specifications, performance chart, gear ratios, oil details, and rim/tyre sizes for the Jawa 250 Type 353/04:
| Category | Details |
|---|---|
| Model | Jawa 250 Type 353/04 |
| Engine Type | Two-stroke, air-cooled |
| Number of Cylinders | 1 |
| Bore x Stroke | 68 mm x 68 mm |
| Engine Displacement | 248.5 cc |
| Compression Ratio | 7.5:1 |
| Engine Output | Around 12-13 BHP (approx.) |
| Fuel System | Carbureted |
| Carburetor Type | Jikov |
| Fuel Tank Capacity | Approximately 13 liters |
| Oil Type | 2-stroke motorcycle oil |
| Oil Capacity | Approx. 1.0 – 1.2 liters |
| Transmission | 4-speed gearbox |
| Gear Ratios | Primary Drive: 17/39, 16/43, 17/39, 17/39 |
| Overall Gear Ratios | 1st: 11.49, 2nd: 7.60, 3rd: 5.95, 4th: 4.83 |
| Performance Chart | 0-60 km/h: approx. 9-10 seconds, Top Speed: 120 km/h (approx.) |
| Rim Size | Front: 2.75 x 18 inches, Rear: 3.00 x 18 inches |
| Tyre Size | Front: 3.00 x 18 inches, Rear: 3.25 x 18 inches |
Please note that some values, especially gear ratios and performance figures, may vary slightly based on specific models and variations within the Jawa 250 Type 353/04 series.
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Electrical System:
- Ignition Type: Coil ignition system
- Voltage: Typically 6 volts (common in motorcycles of that era)
- Generator/Charging System: Dynamo-based charging system
- Lighting: Traditional incandescent bulbs for headlight, taillight, and indicators
- Wiring: Basic wiring harness with minimal electronic components
Ignition:
- Ignition System: Points-based contact breaker ignition
- Spark Plug Type: Typically employs a single spark plug
- Timing: Fixed ignition timing, usually set manually
Please note that specific electrical and ignition configurations might vary based on the bike’s maintenance, modifications, or regional specifications. These details represent common setups found in the Jawa 250 Type 353/04 during its manufacturing period.
Pros of Jawa 250 Type 353/04:
- Reliable Engine: Renowned for its durable two-stroke engine, offering dependable performance.
- Vintage Design: Embraces classic aesthetics, appealing to enthusiasts of retro motorcycles.
- Balanced Power: Provides a balanced blend of power and efficiency for daily riding.
- Maneuverability: Agile and easy to handle, making it suitable for urban and rural roads.
- Heritage Value: Carries the heritage of Jawa motorcycles, appealing to collectors and vintage bike enthusiasts.
Cons of Jawa 250 Type 353/04:
- Limited Modern Features: Lacks modern amenities found in contemporary motorcycles.
- Maintenance Intensive: Being a vintage model, it may require frequent maintenance.
- Availability of Parts: Some components might be challenging to find due to age and rarity.
Difference between 04 and 05 Models:
The primary difference between the Jawa 250 Type 353/04 and 353/05 models lies in the internal components, particularly in their engine specifications and minor design alterations. Often, these differences are nuanced, such as adjustments in carburetion, minor gear ratio tweaks, or subtle engine optimizations, resulting in slight variations in performance and handling. However, these variations might not drastically alter the overall riding experience, maintaining the classic Jawa essence across both models.
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