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TECHNICAL DATA
| Engine | |
| Type: | FY139FMB |
| Constuction: | One cylinder 4-stroke petrol engine |
| Valve steering: | 1 overhead cam with rocker arms |
| Valve: | 2 valve |
| Valve clearance, cold: | intake+exhaust 0.05 mm-0.08 mm |
| Piston displacement: | 49.5 ml |
| Bore: | �@39 mm |
| Stroke: | 41.4 mm |
| Compression ratio: | 10 : 1 |
| Lubrication system: | forced oil lubrication |
| Cooling: | air cooled |
| Maximum net power output: | 2.0 kW at 7,000 1/min |
| Maximum net torque: | 3.2 Nm at 4,300 1/min |
| Ignition system: | transister ignition system with electronic ignition control (CDI) |
| Spark plug: | NGK CR7 HSA electrode gap 0.7-0.8 mm |
| Carburettor: | Mikuni type VM 12 101 6 |
| Air-filter: | paper air-filter |
| Idle speed: | 1.800 +/- 200 1/min |
| Type of starter: | electric starter / kick starter |
| Power transmission | |
| Clutch: | Wet multi-plate type |
| Gear box: | 4-speed constant mesh, foot operated |
| Gear rations: | 1.gear = 36/11 (3,273) |
| 2.gear = 31/16 (1,938) | |
| 3.gear = 27/20 (1,350) | |
| 4.gear = 24/23 (1,044) | |
| Primary transmission ratio: | 4,059 |
| Chain pinion: | 11 teeth |
| Sprocket: | 53 teeth |
| Drive chain: | 420 |
| Lubricants and operating fluids | |
| Fuel tank capacity: | 4.6 litres, including 0.35 litres reserve |
| Fuel: | Unleaded fuel min. 91 octane |
| Engine oil: Filling quantity: |
SAE 15 W 40 mineral oil API (SG or higher) 800 ml |
| Brake fluid: | DOT 4 |
| Dimensions and Weights | |
| Overall length: | 1830 mm |
| Width across handlebars without rear view mirror: |
780 mm |
| Maximum height: | 1010 mm without rear view mirror |
| Wheel base: | 1235 mm |
| Seat height: | 865 mm |
| Weight empty: | 85 kg |
| Weight in running order: | 89.5 kg |
| Max. transport weight allowed: | 190.5 kg |
| Max. permitted total weight: | 280 kg |
| Top speed: | 45 km/h |
| バイクの部屋 | 私のバイク遍歴 | マダスくん日記 |
| 玄関へ | 本館入り口へ | ガレージ入り口へ |